117425640 has 128 divisors (see below), whose sum is σ = 373766400. Its totient is φ = 29460480.

The previous prime is 117425617. The next prime is 117425641. The reversal of 117425640 is 46524711.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 117425598 and 117425607.

It is not an unprimeable number, because it can be changed into a prime (117425641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142269 + ... + 143091.

It is an arithmetic number, because the mean of its divisors is an integer number (2920050).

Almost surely, 2^117425640 is an apocalyptic number.

117425640 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 117425640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186883200).

117425640 is an abundant number, since it is smaller than the sum of its proper divisors (256340760).

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

117425640 is a wasteful number, since it uses less digits than its factorization.

117425640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907 (or 903 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 117425640 is about 10836.3111804710. The cubic root of 117425640 is about 489.6897105358.

The spelling of 117425640 in words is "one hundred seventeen million, four hundred twenty-five thousand, six hundred forty".