651267460 has 12 divisors (see below), whose sum is σ = 1367661708. Its totient is φ = 260506976.

The previous prime is 651267457. The next prime is 651267473. The reversal of 651267460 is 64762156.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 119596096 + 531671364 = 10936^2 + 23058^2 .

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 3 ways as a sum of consecutive naturals, for example, 16281667 + ... + 16281706.

It is an arithmetic number, because the mean of its divisors is an integer number (113971809).

Almost surely, 2^651267460 is an apocalyptic number.

It is an amenable number.

651267460 is an abundant number, since it is smaller than the sum of its proper divisors (716394248).

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

651267460 is a wasteful number, since it uses less digits than its factorization.

651267460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32563382 (or 32563380 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 651267460 is about 25519.9423980541. The cubic root of 651267460 is about 866.8017774234.

The spelling of 651267460 in words is "six hundred fifty-one million, two hundred sixty-seven thousand, four hundred sixty".