649334808 has 48 divisors (see below), whose sum is σ = 1759801680. Its totient is φ = 216298944.

The previous prime is 649334801. The next prime is 649334837. The reversal of 649334808 is 808433946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649334801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182341 + ... + 185867.

It is an arithmetic number, because the mean of its divisors is an integer number (36662535).

Almost surely, 2^649334808 is an apocalyptic number.

It is an amenable number.

649334808 is an abundant number, since it is smaller than the sum of its proper divisors (1110466872).

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

649334808 is a wasteful number, since it uses less digits than its factorization.

649334808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6096 (or 6089 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 649334808 is about 25482.0487402406. The cubic root of 649334808 is about 865.9435094457.

The spelling of 649334808 in words is "six hundred forty-nine million, three hundred thirty-four thousand, eight hundred eight".