117477642 has 16 divisors (see below), whose sum is σ = 235439712. Its totient is φ = 39078480.

The previous prime is 117477641. The next prime is 117477649. The reversal of 117477642 is 246774711.

It is a self number, because there is not a number n which added to its sum of digits gives 117477642.

It is not an unprimeable number, because it can be changed into a prime (117477641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16993 + ... + 22884.

It is an arithmetic number, because the mean of its divisors is an integer number (14714982).

Almost surely, 2^117477642 is an apocalyptic number.

117477642 is an abundant number, since it is smaller than the sum of its proper divisors (117962070).

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

117477642 is a wasteful number, since it uses less digits than its factorization.

117477642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40373.

The product of its digits is 65856, while the sum is 39.

The square root of 117477642 is about 10838.7103476382. The cubic root of 117477642 is about 489.7619863074.

The spelling of 117477642 in words is "one hundred seventeen million, four hundred seventy-seven thousand, six hundred forty-two".