318074642 has 6 divisors (see below), whose sum is σ = 477149799. Its totient is φ = 159024710.

The previous prime is 318074623. The next prime is 318074657. The reversal of 318074642 is 246470813.

It can be written as a sum of positive squares in only one way, i.e., 159037321 + 159037321 = 12611^2 + 12611^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=12611.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18917 + ... + 31527.

Almost surely, 2^318074642 is an apocalyptic number.

318074642 is a deficient number, since it is larger than the sum of its proper divisors (159075157).

318074642 is an frugal number, since it uses more digits than its factorization.

318074642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25224 (or 12613 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 318074642 is about 17834.6472350871. The cubic root of 318074642 is about 682.6158199056.

The spelling of 318074642 in words is "three hundred eighteen million, seventy-four thousand, six hundred forty-two".