1928325864 has 16 divisors (see below), whose sum is σ = 4820814720. Its totient is φ = 642775280.

The previous prime is 1928325863. The next prime is 1928325869. The reversal of 1928325864 is 4685238291.

It is not an unprimeable number, because it can be changed into a prime (1928325863) 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, 40173432 + ... + 40173479.

It is an arithmetic number, because the mean of its divisors is an integer number (301300920).

Almost surely, 2^1928325864 is an apocalyptic number.

It is an amenable number.

1928325864 is an abundant number, since it is smaller than the sum of its proper divisors (2892488856).

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

1928325864 is a wasteful number, since it uses less digits than its factorization.

1928325864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80346920 (or 80346916 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 1928325864 is about 43912.7073180418. The cubic root of 1928325864 is about 1244.6869669929.

The spelling of 1928325864 in words is "one billion, nine hundred twenty-eight million, three hundred twenty-five thousand, eight hundred sixty-four".