649710330 has 16 divisors (see below), whose sum is σ = 1559304864. Its totient is φ = 173256080.

The previous prime is 649710289. The next prime is 649710359. The reversal of 649710330 is 33017946.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 649710291 and 649710300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10828476 + ... + 10828535.

It is an arithmetic number, because the mean of its divisors is an integer number (97456554).

Almost surely, 2^649710330 is an apocalyptic number.

649710330 is an abundant number, since it is smaller than the sum of its proper divisors (909594534).

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

649710330 is a wasteful number, since it uses less digits than its factorization.

649710330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21657021.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 649710330 is about 25489.4160388189. The cubic root of 649710330 is about 866.1104075126.

The spelling of 649710330 in words is "six hundred forty-nine million, seven hundred ten thousand, three hundred thirty".