117628056 has 144 divisors (see below), whose sum is σ = 394533360. Its totient is φ = 31000320.

The previous prime is 117628037. The next prime is 117628061. The reversal of 117628056 is 650826711.

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

It is a self number, because there is not a number n which added to its sum of digits gives 117628056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 84486 + ... + 85866.

It is an arithmetic number, because the mean of its divisors is an integer number (2739815).

Almost surely, 2^117628056 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 117628056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197266680).

117628056 is an abundant number, since it is smaller than the sum of its proper divisors (276905304).

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

117628056 is a wasteful number, since it uses less digits than its factorization.

117628056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1406 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 117628056 is about 10845.6468686750. The cubic root of 117628056 is about 489.9709215008.

The spelling of 117628056 in words is "one hundred seventeen million, six hundred twenty-eight thousand, fifty-six".