522428456 has 64 divisors (see below), whose sum is σ = 1103319360. Its totient is φ = 229824000.

The previous prime is 522428449. The next prime is 522428483. The reversal of 522428456 is 654824225.

It is a super-3 number, since 3×522428456³ (a number of 27 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 914651 + ... + 915221.

It is an arithmetic number, because the mean of its divisors is an integer number (17239365).

Almost surely, 2^522428456 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 522428456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (551659680).

522428456 is an abundant number, since it is smaller than the sum of its proper divisors (580890904).

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

522428456 is a wasteful number, since it uses less digits than its factorization.

522428456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 902 counting only the distinct ones).

The product of its digits is 153600, while the sum is 38.

The square root of 522428456 is about 22856.6938991622. The cubic root of 522428456 is about 805.3950228743.

The spelling of 522428456 in words is "five hundred twenty-two million, four hundred twenty-eight thousand, four hundred fifty-six".