931392140 has 24 divisors (see below), whose sum is σ = 2235341472. Its totient is φ = 319334400.

The previous prime is 931392131. The next prime is 931392197. The reversal of 931392140 is 41293139.

It is a junction number, because it is equal to n+sod(n) for n = 931392097 and 931392106.

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, 3326261 + ... + 3326540.

It is an arithmetic number, because the mean of its divisors is an integer number (93139228).

Almost surely, 2^931392140 is an apocalyptic number.

It is an amenable number.

931392140 is an abundant number, since it is smaller than the sum of its proper divisors (1303949332).

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

931392140 is a wasteful number, since it uses less digits than its factorization.

931392140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652817 (or 6652815 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 931392140 is about 30518.7178629771. The cubic root of 931392140 is about 976.5868142588.

The spelling of 931392140 in words is "nine hundred thirty-one million, three hundred ninety-two thousand, one hundred forty".