117434640 has 160 divisors (see below), whose sum is σ = 390510720. Its totient is φ = 29089792.

The previous prime is 117434627. The next prime is 117434641. The reversal of 117434640 is 46434711.

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 = 117434598 and 117434607.

It is not an unprimeable number, because it can be changed into a prime (117434641) 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, 436426 + ... + 436694.

It is an arithmetic number, because the mean of its divisors is an integer number (2440692).

Almost surely, 2^117434640 is an apocalyptic number.

117434640 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 117434640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195255360).

117434640 is an abundant number, since it is smaller than the sum of its proper divisors (273076080).

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

117434640 is a wasteful number, since it uses less digits than its factorization.

117434640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 117434640 is about 10836.7264429808. The cubic root of 117434640 is about 489.7022208496.

The spelling of 117434640 in words is "one hundred seventeen million, four hundred thirty-four thousand, six hundred forty".