401367764 has 24 divisors (see below), whose sum is σ = 811016640. Its totient is φ = 170240256.

The previous prime is 401367763. The next prime is 401367803. The reversal of 401367764 is 467763104.

It is a super-2 number, since 2×401367764² = 322192163956719392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401367763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71174 + ... + 76605.

It is an arithmetic number, because the mean of its divisors is an integer number (33792360).

Almost surely, 2^401367764 is an apocalyptic number.

It is an amenable number.

401367764 is an abundant number, since it is smaller than the sum of its proper divisors (409648876).

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

401367764 is a wasteful number, since it uses less digits than its factorization.

401367764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147887 (or 147885 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 401367764 is about 20034.1649189578. The cubic root of 401367764 is about 737.6451585957.

The spelling of 401367764 in words is "four hundred one million, three hundred sixty-seven thousand, seven hundred sixty-four".