401764512 has 96 divisors (see below), whose sum is σ = 1085918400. Its totient is φ = 130009088.

The previous prime is 401764501. The next prime is 401764513. The reversal of 401764512 is 215467104.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×401764512² = 322829446205196288, 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 401764512.

It is not an unprimeable number, because it can be changed into a prime (401764513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503698 + ... + 504494.

It is an arithmetic number, because the mean of its divisors is an integer number (11311650).

Almost surely, 2^401764512 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 401764512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542959200).

401764512 is an abundant number, since it is smaller than the sum of its proper divisors (684153888).

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

401764512 is a wasteful number, since it uses less digits than its factorization.

401764512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 401764512 is about 20044.0642585280. The cubic root of 401764512 is about 737.8881301630. Note that the first 3 decimals are identical.

The spelling of 401764512 in words is "four hundred one million, seven hundred sixty-four thousand, five hundred twelve".