318040799 has 2 divisors, whose sum is σ = 318040800. Its totient is φ = 318040798.

The previous prime is 318040783. The next prime is 318040817. The reversal of 318040799 is 997040813.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 318040799 - 2⁴ = 318040783 is a prime.

It is a super-2 number, since 2×318040799² = 202299899657116802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318040769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159020399 + 159020400.

It is an arithmetic number, because the mean of its divisors is an integer number (159020400).

Almost surely, 2^318040799 is an apocalyptic number.

318040799 is a deficient number, since it is larger than the sum of its proper divisors (1).

318040799 is an equidigital number, since it uses as much as digits as its factorization.

318040799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 318040799 is about 17833.6984105934. The cubic root of 318040799 is about 682.5916090407.

The spelling of 318040799 in words is "three hundred eighteen million, forty thousand, seven hundred ninety-nine".