117869520 has 80 divisors (see below), whose sum is σ = 366440832. Its totient is φ = 31342080.

The previous prime is 117869519. The next prime is 117869537. The reversal of 117869520 is 25968711.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158269 + ... + 159011.

Almost surely, 2^117869520 is an apocalyptic number.

117869520 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 117869520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183220416).

117869520 is an abundant number, since it is smaller than the sum of its proper divisors (248571312).

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

117869520 is a wasteful number, since it uses less digits than its factorization.

117869520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 117869520 is about 10856.7730012191. The cubic root of 117869520 is about 490.3059591326.

The spelling of 117869520 in words is "one hundred seventeen million, eight hundred sixty-nine thousand, five hundred twenty".