655974000 has 240 divisors, whose sum is σ = 2500134624. Its totient is φ = 158976000.

The previous prime is 655973963. The next prime is 655974001. The reversal of 655974000 is 479556.

655974000 is a `hidden beast` number, since 65 + 597 + 4 + 0 + 0 + 0 = 666.

655974000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655974001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196344 + ... + 199656.

Almost surely, 2^655974000 is an apocalyptic number.

655974000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655974000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250067312).

655974000 is an abundant number, since it is smaller than the sum of its proper divisors (1844160624).

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

655974000 is a wasteful number, since it uses less digits than its factorization.

655974000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353 (or 3334 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 655974000 is about 25611.9893799759. The cubic root of 655974000 is about 868.8848176811.

The spelling of 655974000 in words is "six hundred fifty-five million, nine hundred seventy-four thousand".