400492113 has 16 divisors (see below), whose sum is σ = 612813696. Its totient is φ = 227900160.

The previous prime is 400492109. The next prime is 400492129. The reversal of 400492113 is 311294004.

It is not a de Polignac number, because 400492113 - 2² = 400492109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400492163) 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, 34506 + ... + 44627.

It is an arithmetic number, because the mean of its divisors is an integer number (38300856).

Almost surely, 2^400492113 is an apocalyptic number.

It is an amenable number.

400492113 is a deficient number, since it is larger than the sum of its proper divisors (212321583).

400492113 is a wasteful number, since it uses less digits than its factorization.

400492113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79384.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 400492113 is about 20012.2990433383. The cubic root of 400492113 is about 737.1083358641.

The spelling of 400492113 in words is "four hundred million, four hundred ninety-two thousand, one hundred thirteen".