521234496 has 84 divisors (see below), whose sum is σ = 1542271744. Its totient is φ = 168134400.

The previous prime is 521234491. The next prime is 521234507. The reversal of 521234496 is 694432125.

It is a happy number.

521234496 is a `hidden beast` number, since 521 + 2 + 3 + 44 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 521234496.

It is not an unprimeable number, because it can be changed into a prime (521234491) 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 11 ways as a sum of consecutive naturals, for example, 3261 + ... + 32451.

Almost surely, 2^521234496 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 521234496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771135872).

521234496 is an abundant number, since it is smaller than the sum of its proper divisors (1021037248).

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

521234496 is a wasteful number, since it uses less digits than its factorization.

521234496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29240 (or 29227 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 521234496 is about 22830.5605713044. The cubic root of 521234496 is about 804.7810039164.

The spelling of 521234496 in words is "five hundred twenty-one million, two hundred thirty-four thousand, four hundred ninety-six".