840631948 has 12 divisors (see below), whose sum is σ = 1584268000. Its totient is φ = 387983952.

The previous prime is 840631933. The next prime is 840631951. The reversal of 840631948 is 849136048.

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, 8082948 + ... + 8083051.

Almost surely, 2^840631948 is an apocalyptic number.

It is an amenable number.

840631948 is a deficient number, since it is larger than the sum of its proper divisors (743636052).

840631948 is a wasteful number, since it uses less digits than its factorization.

840631948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16166016 (or 16166014 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 840631948 is about 28993.6535814305. The cubic root of 840631948 is about 943.7753508212.

The spelling of 840631948 in words is "eight hundred forty million, six hundred thirty-one thousand, nine hundred forty-eight".