649052992 has 28 divisors (see below), whose sum is σ = 1471960480. Its totient is φ = 278165376.

The previous prime is 649052947. The next prime is 649053007. The reversal of 649052992 is 299250946.

It is a tau number, because it is divible by the number of its divisors (28).

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, 723942 + ... + 724837.

Almost surely, 2^649052992 is an apocalyptic number.

It is an amenable number.

649052992 is an abundant number, since it is smaller than the sum of its proper divisors (822907488).

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

649052992 is a wasteful number, since it uses less digits than its factorization.

649052992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448798 (or 1448788 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 649052992 is about 25476.5184434608. The cubic root of 649052992 is about 865.8182160705.

The spelling of 649052992 in words is "six hundred forty-nine million, fifty-two thousand, nine hundred ninety-two".