424044240 has 80 divisors (see below), whose sum is σ = 1323355776. Its totient is φ = 112320000.

The previous prime is 424044233. The next prime is 424044241. The reversal of 424044240 is 42440424.

It is a tau number, because it is divible by the number of its divisors (80).

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 424044240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424044241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30390 + ... + 42090.

Almost surely, 2^424044240 is an apocalyptic number.

424044240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424044240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661677888).

424044240 is an abundant number, since it is smaller than the sum of its proper divisors (899311536).

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

424044240 is a wasteful number, since it uses less digits than its factorization.

424044240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11868 (or 11862 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 424044240 is about 20592.3344961177. The cubic root of 424044240 is about 751.2832785647.

Adding to 424044240 its reverse (42440424), we get a palindrome (466484664).

The spelling of 424044240 in words is "four hundred twenty-four million, forty-four thousand, two hundred forty".