117405440 has 108 divisors (see below), whose sum is σ = 293342616. Its totient is φ = 45010944.

The previous prime is 117405439. The next prime is 117405443. The reversal of 117405440 is 44504711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117405443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1752287 + ... + 1752353.

Almost surely, 2^117405440 is an apocalyptic number.

117405440 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 117405440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146671308).

117405440 is an abundant number, since it is smaller than the sum of its proper divisors (175937176).

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

117405440 is an frugal number, since it uses more digits than its factorization.

117405440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 117405440 is about 10835.3790888921. The cubic root of 117405440 is about 489.6616295039.

The spelling of 117405440 in words is "one hundred seventeen million, four hundred five thousand, four hundred forty".