1939930404 has 24 divisors (see below), whose sum is σ = 4527391680. Its totient is φ = 646516704.

The previous prime is 1939930403. The next prime is 1939930409. The reversal of 1939930404 is 4040399391.

It is not an unprimeable number, because it can be changed into a prime (1939930403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64017 + ... + 89319.

It is an arithmetic number, because the mean of its divisors is an integer number (188641320).

Almost surely, 2^1939930404 is an apocalyptic number.

It is an amenable number.

1939930404 is an abundant number, since it is smaller than the sum of its proper divisors (2587461276).

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

1939930404 is a wasteful number, since it uses less digits than its factorization.

1939930404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31699 (or 31697 counting only the distinct ones).

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

The square root of 1939930404 is about 44044.6410361124. The cubic root of 1939930404 is about 1247.1787902642.

The spelling of 1939930404 in words is "one billion, nine hundred thirty-nine million, nine hundred thirty thousand, four hundred four".