401572524 has 48 divisors (see below), whose sum is σ = 988646400. Its totient is φ = 126513216.

The previous prime is 401572517. The next prime is 401572547. The reversal of 401572524 is 425275104.

It is a super-2 number, since 2×401572524² = 322520984063461152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401572491 and 401572500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107374 + ... + 111050.

It is an arithmetic number, because the mean of its divisors is an integer number (20596800).

Almost surely, 2^401572524 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 401572524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494323200).

401572524 is an abundant number, since it is smaller than the sum of its proper divisors (587073876).

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

401572524 is a wasteful number, since it uses less digits than its factorization.

401572524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4182 (or 4180 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 401572524 is about 20039.2745377671. The cubic root of 401572524 is about 737.7705751993.

The spelling of 401572524 in words is "four hundred one million, five hundred seventy-two thousand, five hundred twenty-four".