400056063 has 16 divisors (see below), whose sum is σ = 582422400. Its totient is φ = 242240480.

The previous prime is 400056037. The next prime is 400056071. The reversal of 400056063 is 360650004.

It is a cyclic number.

It is not a de Polignac number, because 400056063 - 2⁸ = 400055807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400056463) 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, 36733 + ... + 46361.

It is an arithmetic number, because the mean of its divisors is an integer number (36401400).

Almost surely, 2^400056063 is an apocalyptic number.

400056063 is a deficient number, since it is larger than the sum of its proper divisors (182366337).

400056063 is a wasteful number, since it uses less digits than its factorization.

400056063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10902.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 400056063 is about 20001.4015258931. The cubic root of 400056063 is about 736.8407210963.

The spelling of 400056063 in words is "four hundred million, fifty-six thousand, sixty-three".