649189496 has 16 divisors (see below), whose sum is σ = 1230908400. Its totient is φ = 320947264.

The previous prime is 649189483. The next prime is 649189537. The reversal of 649189496 is 694981946.

649189496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455180 + ... + 456603.

It is an arithmetic number, because the mean of its divisors is an integer number (76931775).

Almost surely, 2^649189496 is an apocalyptic number.

It is an amenable number.

649189496 is a deficient number, since it is larger than the sum of its proper divisors (581718904).

649189496 is a wasteful number, since it uses less digits than its factorization.

649189496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911878 (or 911874 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 56.

The square root of 649189496 is about 25479.1973185970. The cubic root of 649189496 is about 865.8789092993.

The spelling of 649189496 in words is "six hundred forty-nine million, one hundred eighty-nine thousand, four hundred ninety-six".