30932778940 has 48 divisors (see below), whose sum is σ = 74273472000. Its totient is φ = 10600552512.

The previous prime is 30932778937. The next prime is 30932778973. The reversal of 30932778940 is 4987723903.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254361 + ... + 355759.

It is an arithmetic number, because the mean of its divisors is an integer number (1547364000).

Almost surely, 2^30932778940 is an apocalyptic number.

It is an amenable number.

30932778940 is an abundant number, since it is smaller than the sum of its proper divisors (43340693060).

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

30932778940 is a wasteful number, since it uses less digits than its factorization.

30932778940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103594 (or 103592 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 30932778940 in words is "thirty billion, nine hundred thirty-two million, seven hundred seventy-eight thousand, nine hundred forty".