398856268 has 6 divisors (see below), whose sum is σ = 697998476. Its totient is φ = 199428132.

The previous prime is 398856229. The next prime is 398856281. The reversal of 398856268 is 862658893.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49857030 + ... + 49857037.

Almost surely, 2^398856268 is an apocalyptic number.

It is an amenable number.

398856268 is a deficient number, since it is larger than the sum of its proper divisors (299142208).

398856268 is a wasteful number, since it uses less digits than its factorization.

398856268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99714071 (or 99714069 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 55.

The square root of 398856268 is about 19971.3862313060. The cubic root of 398856268 is about 736.1033718819.

The spelling of 398856268 in words is "three hundred ninety-eight million, eight hundred fifty-six thousand, two hundred sixty-eight".