185040140 has 12 divisors (see below), whose sum is σ = 388584336. Its totient is φ = 74016048.

The previous prime is 185040139. The next prime is 185040169. The reversal of 185040140 is 41040581.

185040140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×185040140² = 68479706822439200, which contains 22 as substring.

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, 4625984 + ... + 4626023.

It is an arithmetic number, because the mean of its divisors is an integer number (32382028).

Almost surely, 2^185040140 is an apocalyptic number.

185040140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

185040140 is an abundant number, since it is smaller than the sum of its proper divisors (203544196).

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

185040140 is a wasteful number, since it uses less digits than its factorization.

185040140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9252016 (or 9252014 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 185040140 is about 13602.9460044507. The cubic root of 185040140 is about 569.8431290893.

The spelling of 185040140 in words is "one hundred eighty-five million, forty thousand, one hundred forty".