655734880 has 48 divisors (see below), whose sum is σ = 1640308320. Its totient is φ = 246863872.

The previous prime is 655734857. The next prime is 655734887. The reversal of 655734880 is 88437556.

It is a super-2 number, since 2×655734880² = 859976465697228800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 655734880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655734887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117820 + ... + 123259.

It is an arithmetic number, because the mean of its divisors is an integer number (34173090).

Almost surely, 2^655734880 is an apocalyptic number.

It is an amenable number.

655734880 is an abundant number, since it is smaller than the sum of its proper divisors (984573440).

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

655734880 is a wasteful number, since it uses less digits than its factorization.

655734880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241111 (or 241103 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The square root of 655734880 is about 25607.3208282319. The cubic root of 655734880 is about 868.7792276280.

The spelling of 655734880 in words is "six hundred fifty-five million, seven hundred thirty-four thousand, eight hundred eighty".