117228880 has 20 divisors (see below), whose sum is σ = 272557332. Its totient is φ = 46891520.

The previous prime is 117228833. The next prime is 117228883. The reversal of 117228880 is 88822711.

It can be written as a sum of positive squares in 2 ways, for example, as 31629376 + 85599504 = 5624^2 + 9252^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×117228880² = 27485220612108800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117228883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732601 + ... + 732760.

Almost surely, 2^117228880 is an apocalyptic number.

117228880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117228880 is an abundant number, since it is smaller than the sum of its proper divisors (155328452).

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

117228880 is a wasteful number, since it uses less digits than its factorization.

117228880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465374 (or 1465368 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 37.

The square root of 117228880 is about 10827.2286389454. The cubic root of 117228880 is about 489.4160473805.

It can be divided in two parts, 11722 and 8880, that added together give a palindrome (20602).

The spelling of 117228880 in words is "one hundred seventeen million, two hundred twenty-eight thousand, eight hundred eighty".