117899190 has 96 divisors (see below), whose sum is σ = 318427200. Its totient is φ = 30243840.

The previous prime is 117899147. The next prime is 117899191. The reversal of 117899190 is 91998711.

It is a super-2 number, since 2×117899190² = 27800438005312200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117899191) 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, 328231 + ... + 328589.

It is an arithmetic number, because the mean of its divisors is an integer number (3316950).

Almost surely, 2^117899190 is an apocalyptic number.

117899190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 117899190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159213600).

117899190 is an abundant number, since it is smaller than the sum of its proper divisors (200528010).

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

117899190 is a wasteful number, since it uses less digits than its factorization.

117899190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 45.

The square root of 117899190 is about 10858.1393433682. The cubic root of 117899190 is about 490.3470954596.

The spelling of 117899190 in words is "one hundred seventeen million, eight hundred ninety-nine thousand, one hundred ninety".