117494478 has 12 divisors (see below), whose sum is σ = 254571408. Its totient is φ = 39164820.

The previous prime is 117494477. The next prime is 117494539. The reversal of 117494478 is 874494711.

It is a happy number.

117494478 is a `hidden beast` number, since 1 + 174 + 9 + 4 + 478 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117494471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3263718 + ... + 3263753.

It is an arithmetic number, because the mean of its divisors is an integer number (21214284).

Almost surely, 2^117494478 is an apocalyptic number.

117494478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

117494478 is an abundant number, since it is smaller than the sum of its proper divisors (137076930).

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

117494478 is a wasteful number, since it uses less digits than its factorization.

117494478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6527479 (or 6527476 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 117494478 is about 10839.4869804802. The cubic root of 117494478 is about 489.7853815078.

The spelling of 117494478 in words is "one hundred seventeen million, four hundred ninety-four thousand, four hundred seventy-eight".