1939921192 has 32 divisors (see below), whose sum is σ = 3976711200. Its totient is φ = 879851200.

The previous prime is 1939921189. The next prime is 1939921201. The reversal of 1939921192 is 2911299391.

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, 16659 + ... + 64477.

It is an arithmetic number, because the mean of its divisors is an integer number (124272225).

Almost surely, 2^1939921192 is an apocalyptic number.

It is an amenable number.

1939921192 is an abundant number, since it is smaller than the sum of its proper divisors (2036790008).

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

1939921192 is a wasteful number, since it uses less digits than its factorization.

1939921192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48297 (or 48293 counting only the distinct ones).

The product of its digits is 78732, while the sum is 46.

The square root of 1939921192 is about 44044.5364602694. The cubic root of 1939921192 is about 1247.1768161333.

The spelling of 1939921192 in words is "one billion, nine hundred thirty-nine million, nine hundred twenty-one thousand, one hundred ninety-two".