401400568 has 16 divisors (see below), whose sum is σ = 772967880. Its totient is φ = 195275808.

The previous prime is 401400553. The next prime is 401400581. The reversal of 401400568 is 865004104.

It is a super-2 number, since 2×401400568² = 322244831981445248, which contains 22 as substring.

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, 677746 + ... + 678337.

Almost surely, 2^401400568 is an apocalyptic number.

It is an amenable number.

401400568 is a deficient number, since it is larger than the sum of its proper divisors (371567312).

401400568 is a wasteful number, since it uses less digits than its factorization.

401400568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356126 (or 1356122 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 401400568 is about 20034.9836036868. The cubic root of 401400568 is about 737.6652540914.

The spelling of 401400568 in words is "four hundred one million, four hundred thousand, five hundred sixty-eight".