4093931940 has 48 divisors (see below), whose sum is σ = 13100583552. Its totient is φ = 935755776.

The previous prime is 4093931939. The next prime is 4093931953. The reversal of 4093931940 is 491393904.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 4093931892 and 4093931901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4873309 + ... + 4874148.

It is an arithmetic number, because the mean of its divisors is an integer number (272928824).

Almost surely, 2^4093931940 is an apocalyptic number.

It is an amenable number.

4093931940 is an abundant number, since it is smaller than the sum of its proper divisors (9006651612).

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

4093931940 is a wasteful number, since it uses less digits than its factorization.

4093931940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9747476 (or 9747474 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 4093931940 is about 63983.8412413634. The cubic root of 4093931940 is about 1599.7306760221.

The spelling of 4093931940 in words is "four billion, ninety-three million, nine hundred thirty-one thousand, nine hundred forty".