649250304 has 40 divisors (see below), whose sum is σ = 1729647480. Its totient is φ = 216416256.

The previous prime is 649250299. The next prime is 649250309. The reversal of 649250304 is 403052946.

It is an interprime number because it is at equal distance from previous prime (649250299) and next prime (649250309).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649250309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209809 + ... + 212880.

It is an arithmetic number, because the mean of its divisors is an integer number (43241187).

Almost surely, 2^649250304 is an apocalyptic number.

649250304 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

649250304 is an abundant number, since it is smaller than the sum of its proper divisors (1080397176).

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

649250304 is an equidigital number, since it uses as much as digits as its factorization.

649250304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422710 (or 422694 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 649250304 is about 25480.3905778542. The cubic root of 649250304 is about 865.9059433786.

The spelling of 649250304 in words is "six hundred forty-nine million, two hundred fifty thousand, three hundred four".