1920407968 has 24 divisors (see below), whose sum is σ = 3861248832. Its totient is φ = 939773376.

The previous prime is 1920407959. The next prime is 1920408001. The reversal of 1920407968 is 8697040291.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636930 + ... + 639937.

It is an arithmetic number, because the mean of its divisors is an integer number (160885368).

Almost surely, 2^1920407968 is an apocalyptic number.

It is an amenable number.

1920407968 is an abundant number, since it is smaller than the sum of its proper divisors (1940840864).

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

1920407968 is a wasteful number, since it uses less digits than its factorization.

1920407968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276924 (or 1276916 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 1920407968 is about 43822.4596297378. The cubic root of 1920407968 is about 1242.9810274966.

The spelling of 1920407968 in words is "one billion, nine hundred twenty million, four hundred seven thousand, nine hundred sixty-eight".