401525012 has 36 divisors (see below), whose sum is σ = 818594784. Its totient is φ = 171828720.

The previous prime is 401525009. The next prime is 401525017. The reversal of 401525012 is 210525104.

It is a super-2 number, since 2×401525012² = 322444670523200288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401525017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201083 + ... + 203069.

It is an arithmetic number, because the mean of its divisors is an integer number (22738744).

Almost surely, 2^401525012 is an apocalyptic number.

It is an amenable number.

401525012 is an abundant number, since it is smaller than the sum of its proper divisors (417069772).

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

401525012 is a wasteful number, since it uses less digits than its factorization.

401525012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036 (or 3027 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 401525012 is about 20038.0890306436. The cubic root of 401525012 is about 737.7414776424.

The spelling of 401525012 in words is "four hundred one million, five hundred twenty-five thousand, twelve".