116921880 has 192 divisors, whose sum is σ = 411989760. Its totient is φ = 29766528.

The previous prime is 116921821. The next prime is 116921897. The reversal of 116921880 is 88129611.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223299 + ... + 223821.

It is an arithmetic number, because the mean of its divisors is an integer number (2145780).

Almost surely, 2^116921880 is an apocalyptic number.

116921880 is a gapful number since it is divisible by the number (10) 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 116921880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205994880).

116921880 is an abundant number, since it is smaller than the sum of its proper divisors (295067880).

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

116921880 is a wasteful number, since it uses less digits than its factorization.

116921880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 116921880 is about 10813.0421251376. The cubic root of 116921880 is about 488.9884449074.

The spelling of 116921880 in words is "one hundred sixteen million, nine hundred twenty-one thousand, eight hundred eighty".