318996428 has 6 divisors (see below), whose sum is σ = 558243756. Its totient is φ = 159498212.

The previous prime is 318996373. The next prime is 318996439. The reversal of 318996428 is 824699813.

It is a happy number.

318996428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39874550 + ... + 39874557.

It is an arithmetic number, because the mean of its divisors is an integer number (93040626).

Almost surely, 2^318996428 is an apocalyptic number.

It is an amenable number.

318996428 is a deficient number, since it is larger than the sum of its proper divisors (239247328).

318996428 is a wasteful number, since it uses less digits than its factorization.

318996428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79749111 (or 79749109 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 318996428 is about 17860.4711024094. The cubic root of 318996428 is about 683.2745948850.

The spelling of 318996428 in words is "three hundred eighteen million, nine hundred ninety-six thousand, four hundred twenty-eight".