524322240 has 112 divisors (see below), whose sum is σ = 1792821408. Its totient is φ = 129060864.

The previous prime is 524322217. The next prime is 524322247. The reversal of 524322240 is 42223425.

It is a happy number.

It is a super-2 number, since 2×524322240² = 549827622717235200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 524322240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524322247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8527 + ... + 33486.

It is an arithmetic number, because the mean of its divisors is an integer number (16007334).

Almost surely, 2^524322240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 524322240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896410704).

524322240 is an abundant number, since it is smaller than the sum of its proper divisors (1268499168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

524322240 is a wasteful number, since it uses less digits than its factorization.

524322240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42046 (or 42036 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 524322240 is about 22898.0837626208. The cubic root of 524322240 is about 806.3670251381.

Adding to 524322240 its reverse (42223425), we get a palindrome (566545665).

The spelling of 524322240 in words is "five hundred twenty-four million, three hundred twenty-two thousand, two hundred forty".