1912933904 has 20 divisors (see below), whose sum is σ = 4235782464. Its totient is φ = 819828768.

The previous prime is 1912933903. The next prime is 1912933969. The reversal of 1912933904 is 4093392191.

It is a super-2 number, since 2×1912933904² = 7318632242145362432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1912933903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8539772 + ... + 8539995.

Almost surely, 2^1912933904 is an apocalyptic number.

1912933904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1912933904 is an abundant number, since it is smaller than the sum of its proper divisors (2322848560).

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

1912933904 is a wasteful number, since it uses less digits than its factorization.

1912933904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17079782 (or 17079776 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 1912933904 is about 43737.0998581296. The cubic root of 1912933904 is about 1241.3664056472.

The spelling of 1912933904 in words is "one billion, nine hundred twelve million, nine hundred thirty-three thousand, nine hundred four".