117836428 has 24 divisors (see below), whose sum is σ = 211680000. Its totient is φ = 57377040.

The previous prime is 117836399. The next prime is 117836443. The reversal of 117836428 is 824638711.

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, 21073 + ... + 26071.

It is an arithmetic number, because the mean of its divisors is an integer number (8820000).

Almost surely, 2^117836428 is an apocalyptic number.

It is an amenable number.

117836428 is a deficient number, since it is larger than the sum of its proper divisors (93843572).

117836428 is a wasteful number, since it uses less digits than its factorization.

117836428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5157 (or 5155 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 117836428 is about 10855.2488686349. The cubic root of 117836428 is about 490.2600701885.

The spelling of 117836428 in words is "one hundred seventeen million, eight hundred thirty-six thousand, four hundred twenty-eight".