117293428 has 24 divisors (see below), whose sum is σ = 235271232. Its totient is φ = 50121984.

The previous prime is 117293417. The next prime is 117293459. The reversal of 117293428 is 824392711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3951 + ... + 15817.

It is an arithmetic number, because the mean of its divisors is an integer number (9802968).

Almost surely, 2^117293428 is an apocalyptic number.

It is an amenable number.

117293428 is an abundant number, since it is smaller than the sum of its proper divisors (117977804).

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

117293428 is a wasteful number, since it uses less digits than its factorization.

117293428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12231 (or 12229 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 117293428 is about 10830.2090469206. The cubic root of 117293428 is about 489.5058575327.

The spelling of 117293428 in words is "one hundred seventeen million, two hundred ninety-three thousand, four hundred twenty-eight".