649273030 has 24 divisors (see below), whose sum is σ = 1359499248. Its totient is φ = 222607728.

The previous prime is 649272989. The next prime is 649273043. The reversal of 649273030 is 30372946.

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, 662034 + ... + 663013.

It is an arithmetic number, because the mean of its divisors is an integer number (56645802).

Almost surely, 2^649273030 is an apocalyptic number.

649273030 is an abundant number, since it is smaller than the sum of its proper divisors (710226218).

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

649273030 is a wasteful number, since it uses less digits than its factorization.

649273030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325068 (or 1325061 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 649273030 is about 25480.8365247297. The cubic root of 649273030 is about 865.9160464922.

The spelling of 649273030 in words is "six hundred forty-nine million, two hundred seventy-three thousand, thirty".