656574422 has 24 divisors (see below), whose sum is σ = 1195470576. Its totient is φ = 269153808.

The previous prime is 656574421. The next prime is 656574463. The reversal of 656574422 is 224475656.

656574422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 656574422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656574421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143393 + ... + 147900.

It is an arithmetic number, because the mean of its divisors is an integer number (49811274).

Almost surely, 2^656574422 is an apocalyptic number.

656574422 is a deficient number, since it is larger than the sum of its proper divisors (538896154).

656574422 is a wasteful number, since it uses less digits than its factorization.

656574422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291332 (or 291325 counting only the distinct ones).

The product of its digits is 403200, while the sum is 41.

The square root of 656574422 is about 25623.7082015855. The cubic root of 656574422 is about 869.1498375693.

The spelling of 656574422 in words is "six hundred fifty-six million, five hundred seventy-four thousand, four hundred twenty-two".