117508420 has 48 divisors (see below), whose sum is σ = 266254128. Its totient is φ = 43397120.

The previous prime is 117508399. The next prime is 117508421. The reversal of 117508420 is 24805711.

117508420 = 64³ + 65³ + ... + 148³.

It can be written as a sum of positive squares in 8 ways, for example, as 21977344 + 95531076 = 4688^2 + 9774^2 .

It is not an unprimeable number, because it can be changed into a prime (117508421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14760 + ... + 21280.

It is an arithmetic number, because the mean of its divisors is an integer number (5546961).

Almost surely, 2^117508420 is an apocalyptic number.

117508420 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 117508420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133127064).

117508420 is an abundant number, since it is smaller than the sum of its proper divisors (148745708).

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

117508420 is a wasteful number, since it uses less digits than its factorization.

117508420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6600 (or 6598 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 117508420 is about 10840.1300730203. The cubic root of 117508420 is about 489.8047535323.

The spelling of 117508420 in words is "one hundred seventeen million, five hundred eight thousand, four hundred twenty".