398547136 has 28 divisors (see below), whose sum is σ = 851704672. Its totient is φ = 183944448.

The previous prime is 398547103. The next prime is 398547257. The reversal of 398547136 is 631745893.

It is a super-2 number, since 2×398547136² = 317679639227604992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238680 + ... + 240343.

It is an arithmetic number, because the mean of its divisors is an integer number (30418024).

Almost surely, 2^398547136 is an apocalyptic number.

It is an amenable number.

398547136 is an abundant number, since it is smaller than the sum of its proper divisors (453157536).

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

398547136 is a wasteful number, since it uses less digits than its factorization.

398547136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479048 (or 479038 counting only the distinct ones).

The product of its digits is 544320, while the sum is 46.

The square root of 398547136 is about 19963.6453585010. The cubic root of 398547136 is about 735.9131513779.

The spelling of 398547136 in words is "three hundred ninety-eight million, five hundred forty-seven thousand, one hundred thirty-six".