400112718 has 16 divisors (see below), whose sum is σ = 800876160. Its totient is φ = 133262456.

The previous prime is 400112707. The next prime is 400112723. The reversal of 400112718 is 817211004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18930 + ... + 34037.

It is an arithmetic number, because the mean of its divisors is an integer number (50054760).

Almost surely, 2^400112718 is an apocalyptic number.

400112718 is an abundant number, since it is smaller than the sum of its proper divisors (400763442).

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

400112718 is a wasteful number, since it uses less digits than its factorization.

400112718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54231.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 400112718 is about 20002.8177515069. The cubic root of 400112718 is about 736.8755026719.

The spelling of 400112718 in words is "four hundred million, one hundred twelve thousand, seven hundred eighteen".