649722304 has 112 divisors (see below), whose sum is σ = 1659672576. Its totient is φ = 244915200.

The previous prime is 649722289. The next prime is 649722329. The reversal of 649722304 is 403227946.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150642 + ... + 154894.

Almost surely, 2^649722304 is an apocalyptic number.

649722304 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649722304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829836288).

649722304 is an abundant number, since it is smaller than the sum of its proper divisors (1009950272).

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

649722304 is a wasteful number, since it uses less digits than its factorization.

649722304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4314 (or 4304 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 649722304 is about 25489.6509195399. The cubic root of 649722304 is about 866.1157282131.

It can be divided in two parts, 64972 and 2304, that added together give a palindrome (67276).

The spelling of 649722304 in words is "six hundred forty-nine million, seven hundred twenty-two thousand, three hundred four".