650651490 has 48 divisors (see below), whose sum is σ = 1731045888. Its totient is φ = 169471008.

The previous prime is 650651483. The next prime is 650651563. The reversal of 650651490 is 94156056.

650651490 is a `hidden beast` number, since 6 + 50 + 6 + 514 + 90 = 666.

It is a super-2 number, since 2×650651490² = 846694722878440200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80194 + ... + 87933.

It is an arithmetic number, because the mean of its divisors is an integer number (36063456).

Almost surely, 2^650651490 is an apocalyptic number.

650651490 is an abundant number, since it is smaller than the sum of its proper divisors (1080394398).

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

650651490 is a wasteful number, since it uses less digits than its factorization.

650651490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168183 (or 168180 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 650651490 is about 25507.8711381409. The cubic root of 650651490 is about 866.5284169681.

The spelling of 650651490 in words is "six hundred fifty million, six hundred fifty-one thousand, four hundred ninety".