656226260 has 12 divisors (see below), whose sum is σ = 1378075188. Its totient is φ = 262490496.

The previous prime is 656226257. The next prime is 656226331. The reversal of 656226260 is 62622656.

It can be written as a sum of positive squares in 2 ways, for example, as 118635664 + 537590596 = 10892^2 + 23186^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 656226260.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16405637 + ... + 16405676.

It is an arithmetic number, because the mean of its divisors is an integer number (114839599).

Almost surely, 2^656226260 is an apocalyptic number.

It is an amenable number.

656226260 is an abundant number, since it is smaller than the sum of its proper divisors (721848928).

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

656226260 is a wasteful number, since it uses less digits than its factorization.

656226260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32811322 (or 32811320 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 656226260 is about 25616.9135533538. The cubic root of 656226260 is about 868.9961822543.

The spelling of 656226260 in words is "six hundred fifty-six million, two hundred twenty-six thousand, two hundred sixty".