398608968 has 32 divisors (see below), whose sum is σ = 1019700000. Its totient is φ = 129779328.

The previous prime is 398608937. The next prime is 398608993. The reversal of 398608968 is 869806893.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192093 + ... + 194156.

It is an arithmetic number, because the mean of its divisors is an integer number (31865625).

Almost surely, 2^398608968 is an apocalyptic number.

It is an amenable number.

398608968 is an abundant number, since it is smaller than the sum of its proper divisors (621091032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398608968 is a wasteful number, since it uses less digits than its factorization.

398608968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386301 (or 386297 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The square root of 398608968 is about 19965.1939134084. The cubic root of 398608968 is about 735.9512067921.

It can be divided in two parts, 39860 and 8968, that added together give a triangular number (48828 = T₃₁₂).

The spelling of 398608968 in words is "three hundred ninety-eight million, six hundred eight thousand, nine hundred sixty-eight".