656220244 has 24 divisors (see below), whose sum is σ = 1179607968. Its totient is φ = 319308000.

The previous prime is 656220223. The next prime is 656220277. The reversal of 656220244 is 442022656.

It is a congruent number.

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, 7494 + ... + 36994.

It is an arithmetic number, because the mean of its divisors is an integer number (49150332).

Almost surely, 2^656220244 is an apocalyptic number.

It is an amenable number.

656220244 is a deficient number, since it is larger than the sum of its proper divisors (523387724).

656220244 is a wasteful number, since it uses less digits than its factorization.

656220244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29655 (or 29653 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 656220244 is about 25616.7961306640. The cubic root of 656220244 is about 868.9935267185.

It can be divided in two parts, 656 and 220244, that added together give a square (220900 = 470²).

The spelling of 656220244 in words is "six hundred fifty-six million, two hundred twenty thousand, two hundred forty-four".