116509940 has 12 divisors (see below), whose sum is σ = 244670916. Its totient is φ = 46603968.

The previous prime is 116509909. The next prime is 116509951. The reversal of 116509940 is 49905611.

It can be written as a sum of positive squares in 2 ways, for example, as 81036004 + 35473936 = 9002^2 + 5956^2 .

It is a super-2 number, since 2×116509940² = 27149132237607200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 116509940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2912729 + ... + 2912768.

It is an arithmetic number, because the mean of its divisors is an integer number (20389243).

Almost surely, 2^116509940 is an apocalyptic number.

116509940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116509940 is an abundant number, since it is smaller than the sum of its proper divisors (128160976).

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

116509940 is a wasteful number, since it uses less digits than its factorization.

116509940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5825506 (or 5825504 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 116509940 is about 10793.9770242483. The cubic root of 116509940 is about 488.4134999711.

The spelling of 116509940 in words is "one hundred sixteen million, five hundred nine thousand, nine hundred forty".