649413200 has 30 divisors (see below), whose sum is σ = 1560216174. Its totient is φ = 259765120.

The previous prime is 649413161. The next prime is 649413221. The reversal of 649413200 is 2314946.

It can be written as a sum of positive squares in 3 ways, for example, as 14776336 + 634636864 = 3844^2 + 25192^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 811367 + ... + 812166.

Almost surely, 2^649413200 is an apocalyptic number.

It is an amenable number.

649413200 is an abundant number, since it is smaller than the sum of its proper divisors (910802974).

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

649413200 is a wasteful number, since it uses less digits than its factorization.

649413200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623551 (or 1623540 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 649413200 is about 25483.5868746925. The cubic root of 649413200 is about 865.9783555226.

The spelling of 649413200 in words is "six hundred forty-nine million, four hundred thirteen thousand, two hundred".