400112331 has 8 divisors (see below), whose sum is σ = 534155664. Its totient is φ = 266405280.

The previous prime is 400112329. The next prime is 400112369. The reversal of 400112331 is 133211004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400112331 - 2¹ = 400112329 is a prime.

It is a super-2 number, since 2×400112331² = 320179754836507122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400112331.

It is not an unprimeable number, because it can be changed into a prime (400112131) 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, 81280 + ... + 86061.

It is an arithmetic number, because the mean of its divisors is an integer number (66769458).

Almost surely, 2^400112331 is an apocalyptic number.

400112331 is a deficient number, since it is larger than the sum of its proper divisors (134043333).

400112331 is a wasteful number, since it uses less digits than its factorization.

400112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168141.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 400112331 is about 20002.8080778675. The cubic root of 400112331 is about 736.8752650964.

Adding to 400112331 its reverse (133211004), we get a palindrome (533323335).

The spelling of 400112331 in words is "four hundred million, one hundred twelve thousand, three hundred thirty-one".