117402540 has 48 divisors (see below), whose sum is σ = 331817472. Its totient is φ = 31013056.

The previous prime is 117402533. The next prime is 117402541. The reversal of 117402540 is 45204711.

It is a self number, because there is not a number n which added to its sum of digits gives 117402540.

It is not an unprimeable number, because it can be changed into a prime (117402541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2724 + ... + 15563.

It is an arithmetic number, because the mean of its divisors is an integer number (6912864).

Almost surely, 2^117402540 is an apocalyptic number.

117402540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117402540 is an abundant number, since it is smaller than the sum of its proper divisors (214414932).

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

117402540 is a wasteful number, since it uses less digits than its factorization.

117402540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18406 (or 18404 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 117402540 is about 10835.2452671825. The cubic root of 117402540 is about 489.6575978043.

The spelling of 117402540 in words is "one hundred seventeen million, four hundred two thousand, five hundred forty".