185116940 has 24 divisors (see below), whose sum is σ = 391326432. Its totient is φ = 73555200.

The previous prime is 185116937. The next prime is 185116963. The reversal of 185116940 is 49611581.

It is a self number, because there is not a number n which added to its sum of digits gives 185116940.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27629 + ... + 33668.

It is an arithmetic number, because the mean of its divisors is an integer number (16305268).

Almost surely, 2^185116940 is an apocalyptic number.

185116940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

185116940 is an abundant number, since it is smaller than the sum of its proper divisors (206209492).

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

185116940 is a wasteful number, since it uses less digits than its factorization.

185116940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61457 (or 61455 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 185116940 is about 13605.7686295189. The cubic root of 185116940 is about 569.9219550475.

The spelling of 185116940 in words is "one hundred eighty-five million, one hundred sixteen thousand, nine hundred forty".