400927057 has 4 divisors (see below), whose sum is σ = 401405760. Its totient is φ = 400448356.

The previous prime is 400927049. The next prime is 400927063. The reversal of 400927057 is 750729004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400927057 - 2³ = 400927049 is a prime.

It is a super-3 number, since 3×400927057³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400927097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238093 + ... + 239770.

It is an arithmetic number, because the mean of its divisors is an integer number (100351440).

Almost surely, 2^400927057 is an apocalyptic number.

It is an amenable number.

400927057 is a deficient number, since it is larger than the sum of its proper divisors (478703).

400927057 is an equidigital number, since it uses as much as digits as its factorization.

400927057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478702.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 400927057 is about 20023.1630118720. The cubic root of 400927057 is about 737.3750784104.

The spelling of 400927057 in words is "four hundred million, nine hundred twenty-seven thousand, fifty-seven".