401255016 has 32 divisors (see below), whose sum is σ = 1026468960. Its totient is φ = 130640832.

The previous prime is 401254993. The next prime is 401255021. The reversal of 401255016 is 610552104.

It is a super-2 number, since 2×401255016² = 322011175730320512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193375 + ... + 195438.

It is an arithmetic number, because the mean of its divisors is an integer number (32077155).

Almost surely, 2^401255016 is an apocalyptic number.

It is an amenable number.

401255016 is an abundant number, since it is smaller than the sum of its proper divisors (625213944).

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

401255016 is a wasteful number, since it uses less digits than its factorization.

401255016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388865 (or 388861 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 401255016 is about 20031.3508281394. The cubic root of 401255016 is about 737.5760816272.

The spelling of 401255016 in words is "four hundred one million, two hundred fifty-five thousand, sixteen".