656049744 has 120 divisors (see below), whose sum is σ = 2107490112. Its totient is φ = 186624000.

The previous prime is 656049743. The next prime is 656049763. The reversal of 656049744 is 447940656.

656049744 is a `hidden beast` number, since 6 + 560 + 49 + 7 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 656049744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656049743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251712 + ... + 254304.

Almost surely, 2^656049744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 656049744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053745056).

656049744 is an abundant number, since it is smaller than the sum of its proper divisors (1451440368).

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

656049744 is a wasteful number, since it uses less digits than its factorization.

656049744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865 (or 2856 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 656049744 is about 25613.4680197743. The cubic root of 656049744 is about 868.9182591888.

The spelling of 656049744 in words is "six hundred fifty-six million, forty-nine thousand, seven hundred forty-four".