649926912 has 36 divisors (see below), whose sum is σ = 1729755440. Its totient is φ = 216642048.

The previous prime is 649926899. The next prime is 649926923. The reversal of 649926912 is 219629946.

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, 422362 + ... + 423897.

Almost surely, 2^649926912 is an apocalyptic number.

It is an amenable number.

649926912 is an abundant number, since it is smaller than the sum of its proper divisors (1079828528).

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

649926912 is an equidigital number, since it uses as much as digits as its factorization.

649926912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846278 (or 846264 counting only the distinct ones).

The product of its digits is 419904, while the sum is 48.

The square root of 649926912 is about 25493.6641540599. The cubic root of 649926912 is about 866.2066365938.

It can be divided in two parts, 6499 and 26912, that added together give a triangular number (33411 = T₂₅₈).

The spelling of 649926912 in words is "six hundred forty-nine million, nine hundred twenty-six thousand, nine hundred twelve".