524422440 has 96 divisors (see below), whose sum is σ = 1721041920. Its totient is φ = 138478464.

The previous prime is 524422433. The next prime is 524422447. The reversal of 524422440 is 44224425.

It is an interprime number because it is at equal distance from previous prime (524422433) and next prime (524422447).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (524422447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30009 + ... + 44151.

It is an arithmetic number, because the mean of its divisors is an integer number (17927520).

Almost surely, 2^524422440 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 524422440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (860520960).

524422440 is an abundant number, since it is smaller than the sum of its proper divisors (1196619480).

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

524422440 is a wasteful number, since it uses less digits than its factorization.

524422440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14263 (or 14256 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 524422440 is about 22900.2716141097. The cubic root of 524422440 is about 806.4183884814.

Adding to 524422440 its reverse (44224425), we get a palindrome (568646865).

The spelling of 524422440 in words is "five hundred twenty-four million, four hundred twenty-two thousand, four hundred forty".