117553940 has 36 divisors (see below), whose sum is σ = 287169876. Its totient is φ = 40303872.

The previous prime is 117553927. The next prime is 117553949. The reversal of 117553940 is 49355711.

It can be written as a sum of positive squares in 2 ways, for example, as 79780624 + 37773316 = 8932^2 + 6146^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 117553940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117553949) 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, 58997 + ... + 60956.

It is an arithmetic number, because the mean of its divisors is an integer number (7976941).

Almost surely, 2^117553940 is an apocalyptic number.

117553940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117553940 is an abundant number, since it is smaller than the sum of its proper divisors (169615936).

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

117553940 is a wasteful number, since it uses less digits than its factorization.

117553940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119976 (or 119967 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 117553940 is about 10842.2294755276. The cubic root of 117553940 is about 489.8679916504.

The spelling of 117553940 in words is "one hundred seventeen million, five hundred fifty-three thousand, nine hundred forty".