656274356 has 12 divisors (see below), whose sum is σ = 1167308100. Its totient is φ = 322757760.

The previous prime is 656274329. The next prime is 656274373. The reversal of 656274356 is 653472656.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 384552100 + 271722256 = 19610^2 + 16484^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344581 + ... + 1345068.

It is an arithmetic number, because the mean of its divisors is an integer number (97275675).

Almost surely, 2^656274356 is an apocalyptic number.

It is an amenable number.

656274356 is a deficient number, since it is larger than the sum of its proper divisors (511033744).

656274356 is a wasteful number, since it uses less digits than its factorization.

656274356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689714 (or 2689712 counting only the distinct ones).

The product of its digits is 907200, while the sum is 44.

The square root of 656274356 is about 25617.8522909318. The cubic root of 656274356 is about 869.0174118321.

The spelling of 656274356 in words is "six hundred fifty-six million, two hundred seventy-four thousand, three hundred fifty-six".