656383448 has 32 divisors (see below), whose sum is σ = 1455040800. Its totient is φ = 271606272.

The previous prime is 656383423. The next prime is 656383451. The reversal of 656383448 is 844383656.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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, 200465 + ... + 203712.

It is an arithmetic number, because the mean of its divisors is an integer number (45470025).

Almost surely, 2^656383448 is an apocalyptic number.

It is an amenable number.

656383448 is an abundant number, since it is smaller than the sum of its proper divisors (798657352).

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

656383448 is a wasteful number, since it uses less digits than its factorization.

656383448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404219 (or 404215 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 47.

The square root of 656383448 is about 25619.9814207583. The cubic root of 656383448 is about 869.0655612044.

The spelling of 656383448 in words is "six hundred fifty-six million, three hundred eighty-three thousand, four hundred forty-eight".