649292630 has 48 divisors (see below), whose sum is σ = 1369463760. Its totient is φ = 220989888.

The previous prime is 649292627. The next prime is 649292669. The reversal of 649292630 is 36292946.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63344 + ... + 72876.

It is an arithmetic number, because the mean of its divisors is an integer number (28530495).

Almost surely, 2^649292630 is an apocalyptic number.

649292630 is an abundant number, since it is smaller than the sum of its proper divisors (720171130).

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

649292630 is a wasteful number, since it uses less digits than its factorization.

649292630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9693 (or 9686 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 649292630 is about 25481.2211245851. The cubic root of 649292630 is about 865.9247597161.

The spelling of 649292630 in words is "six hundred forty-nine million, two hundred ninety-two thousand, six hundred thirty".