401807712 has 24 divisors (see below), whose sum is σ = 1054745496. Its totient is φ = 133935872.

The previous prime is 401807689. The next prime is 401807729. The reversal of 401807712 is 217708104.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×401807712² = 322898874845349888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401807712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2092653 + ... + 2092844.

It is an arithmetic number, because the mean of its divisors is an integer number (43947729).

Almost surely, 2^401807712 is an apocalyptic number.

It is an amenable number.

401807712 is an abundant number, since it is smaller than the sum of its proper divisors (652937784).

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

401807712 is a wasteful number, since it uses less digits than its factorization.

401807712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4185510 (or 4185502 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 401807712 is about 20045.1418553225. The cubic root of 401807712 is about 737.9145765214.

The spelling of 401807712 in words is "four hundred one million, eight hundred seven thousand, seven hundred twelve".