651026490 has 16 divisors (see below), whose sum is σ = 1562463648. Its totient is φ = 173607056.

The previous prime is 651026447. The next prime is 651026513. The reversal of 651026490 is 94620156.

651026490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10850412 + ... + 10850471.

It is an arithmetic number, because the mean of its divisors is an integer number (97653978).

Almost surely, 2^651026490 is an apocalyptic number.

651026490 is an abundant number, since it is smaller than the sum of its proper divisors (911437158).

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

651026490 is a wasteful number, since it uses less digits than its factorization.

651026490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21700893.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 651026490 is about 25515.2207515436. The cubic root of 651026490 is about 866.6948582217.

The spelling of 651026490 in words is "six hundred fifty-one million, twenty-six thousand, four hundred ninety".