401523928 has 16 divisors (see below), whose sum is σ = 810769680. Its totient is φ = 185318688.

The previous prime is 401523877. The next prime is 401523943. The reversal of 401523928 is 829325104.

It is a super-2 number, since 2×401523928² = 322442929513098368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401523893 and 401523902.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1930300 + ... + 1930507.

It is an arithmetic number, because the mean of its divisors is an integer number (50673105).

Almost surely, 2^401523928 is an apocalyptic number.

It is an amenable number.

401523928 is an abundant number, since it is smaller than the sum of its proper divisors (409245752).

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

401523928 is a wasteful number, since it uses less digits than its factorization.

401523928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860826 (or 3860822 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 401523928 is about 20038.0619821379. The cubic root of 401523928 is about 737.7408137465.

The spelling of 401523928 in words is "four hundred one million, five hundred twenty-three thousand, nine hundred twenty-eight".