117389540 has 12 divisors (see below), whose sum is σ = 246518076. Its totient is φ = 46955808.

The previous prime is 117389537. The next prime is 117389603. The reversal of 117389540 is 45983711.

It can be written as a sum of positive squares in 2 ways, for example, as 18028516 + 99361024 = 4246^2 + 9968^2 .

It is a junction number, because it is equal to n+sod(n) for n = 117389494 and 117389503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2934719 + ... + 2934758.

It is an arithmetic number, because the mean of its divisors is an integer number (20543173).

Almost surely, 2^117389540 is an apocalyptic number.

117389540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117389540 is an abundant number, since it is smaller than the sum of its proper divisors (129128536).

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

117389540 is a wasteful number, since it uses less digits than its factorization.

117389540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5869486 (or 5869484 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 117389540 is about 10834.6453564480. The cubic root of 117389540 is about 489.6395238519.

The spelling of 117389540 in words is "one hundred seventeen million, three hundred eighty-nine thousand, five hundred forty".