648751296 has 28 divisors (see below), whose sum is σ = 1716488312. Its totient is φ = 216250368.

The previous prime is 648751261. The next prime is 648751321. The reversal of 648751296 is 692157846.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 1689265 + ... + 1689648.

It is an arithmetic number, because the mean of its divisors is an integer number (61303154).

Almost surely, 2^648751296 is an apocalyptic number.

It is an amenable number.

648751296 is an abundant number, since it is smaller than the sum of its proper divisors (1067737016).

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

648751296 is a wasteful number, since it uses less digits than its factorization.

648751296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378928 (or 3378918 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 648751296 is about 25470.5966950129. The cubic root of 648751296 is about 865.6840439874.

The spelling of 648751296 in words is "six hundred forty-eight million, seven hundred fifty-one thousand, two hundred ninety-six".