400316499 has 28 divisors (see below), whose sum is σ = 654776952. Its totient is φ = 242611200.

The previous prime is 400316489. The next prime is 400316519. The reversal of 400316499 is 994613004.

400316499 is a `hidden beast` number, since 4 + 0 + 0 + 3 + 1 + 649 + 9 = 666.

It is not a de Polignac number, because 400316499 - 2⁵ = 400316467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400316419) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 16942 + ... + 32979.

Almost surely, 2^400316499 is an apocalyptic number.

400316499 is a deficient number, since it is larger than the sum of its proper divisors (254460453).

400316499 is an equidigital number, since it uses as much as digits as its factorization.

400316499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49950 (or 49935 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 400316499 is about 20007.9109104374. The cubic root of 400316499 is about 737.0005805432. Note that the first 3 decimals are identical.

It can be divided in two parts, 4003 and 16499, that added together give a palindrome (20502).

The spelling of 400316499 in words is "four hundred million, three hundred sixteen thousand, four hundred ninety-nine".