649830268 has 6 divisors (see below), whose sum is σ = 1137202976. Its totient is φ = 324915132.

The previous prime is 649830241. The next prime is 649830271. The reversal of 649830268 is 862038946.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81228780 + ... + 81228787.

Almost surely, 2^649830268 is an apocalyptic number.

It is an amenable number.

649830268 is a deficient number, since it is larger than the sum of its proper divisors (487372708).

649830268 is a wasteful number, since it uses less digits than its factorization.

649830268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162457571 (or 162457569 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 649830268 is about 25491.7686322468. The cubic root of 649830268 is about 866.1636995484.

The spelling of 649830268 in words is "six hundred forty-nine million, eight hundred thirty thousand, two hundred sixty-eight".