649089516 has 48 divisors (see below), whose sum is σ = 1547338464. Its totient is φ = 211700736.

The previous prime is 649089451. The next prime is 649089541. The reversal of 649089516 is 615980946.

It is a super-2 number, since 2×649089516² = 842634399562228512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274210 + ... + 276566.

It is an arithmetic number, because the mean of its divisors is an integer number (32236218).

Almost surely, 2^649089516 is an apocalyptic number.

It is an amenable number.

649089516 is an abundant number, since it is smaller than the sum of its proper divisors (898248948).

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

649089516 is a wasteful number, since it uses less digits than its factorization.

649089516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850 (or 2848 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 649089516 is about 25477.2352503171. The cubic root of 649089516 is about 865.8344564246.

The spelling of 649089516 in words is "six hundred forty-nine million, eighty-nine thousand, five hundred sixteen".