117071440 has 40 divisors (see below), whose sum is σ = 273205728. Its totient is φ = 46654080.

The previous prime is 117071429. The next prime is 117071447. The reversal of 117071440 is 44170711.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117071447) 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, 20055 + ... + 25225.

Almost surely, 2^117071440 is an apocalyptic number.

117071440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117071440 is an abundant number, since it is smaller than the sum of its proper divisors (156134288).

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

117071440 is a wasteful number, since it uses less digits than its factorization.

117071440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5467 (or 5461 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 117071440 is about 10819.9556376170. The cubic root of 117071440 is about 489.1968517267.

The spelling of 117071440 in words is "one hundred seventeen million, seventy-one thousand, four hundred forty".