649830748 has 36 divisors (see below), whose sum is σ = 1325337552. Its totient is φ = 277979520.

The previous prime is 649830739. The next prime is 649830751. The reversal of 649830748 is 847038946.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113433 + ... + 119023.

It is an arithmetic number, because the mean of its divisors is an integer number (36814932).

Almost surely, 2^649830748 is an apocalyptic number.

It is an amenable number.

649830748 is an abundant number, since it is smaller than the sum of its proper divisors (675506804).

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

649830748 is a wasteful number, since it uses less digits than its factorization.

649830748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6202 (or 6193 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 649830748 is about 25491.7780470488. The cubic root of 649830748 is about 866.1639128136.

The spelling of 649830748 in words is "six hundred forty-nine million, eight hundred thirty thousand, seven hundred forty-eight".