398832868 has 24 divisors (see below), whose sum is σ = 800624384. Its totient is φ = 170294400.

The previous prime is 398832859. The next prime is 398832877. The reversal of 398832868 is 868238893.

It is an interprime number because it is at equal distance from previous prime (398832859) and next prime (398832877).

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, 18693 + ... + 33868.

Almost surely, 2^398832868 is an apocalyptic number.

It is an amenable number.

398832868 is an abundant number, since it is smaller than the sum of its proper divisors (401791516).

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

398832868 is a wasteful number, since it uses less digits than its factorization.

398832868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52843 (or 52841 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 55.

The square root of 398832868 is about 19970.8003845615. The cubic root of 398832868 is about 736.0889764240.

It can be divided in two parts, 3988 and 32868, that added together give a triangular number (36856 = T₂₇₁).

The spelling of 398832868 in words is "three hundred ninety-eight million, eight hundred thirty-two thousand, eight hundred sixty-eight".