524399424 has 56 divisors (see below), whose sum is σ = 1390912128. Its totient is φ = 174366720.

The previous prime is 524399417. The next prime is 524399429. The reversal of 524399424 is 424993425.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524399429) 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 7 ways as a sum of consecutive naturals, for example, 79584 + ... + 85920.

Almost surely, 2^524399424 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 524399424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695456064).

524399424 is an abundant number, since it is smaller than the sum of its proper divisors (866512704).

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

524399424 is a wasteful number, since it uses less digits than its factorization.

524399424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6783 (or 6773 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 524399424 is about 22899.7690818052. The cubic root of 524399424 is about 806.4065908695.

The spelling of 524399424 in words is "five hundred twenty-four million, three hundred ninety-nine thousand, four hundred twenty-four".