186952140 has 36 divisors (see below), whose sum is σ = 567088704. Its totient is φ = 49853856.

The previous prime is 186952133. The next prime is 186952151. The reversal of 186952140 is 41259681.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×186952140² = 69902205301159200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 186952095 and 186952104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 519132 + ... + 519491.

It is an arithmetic number, because the mean of its divisors is an integer number (15752464).

Almost surely, 2^186952140 is an apocalyptic number.

186952140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

186952140 is an abundant number, since it is smaller than the sum of its proper divisors (380136564).

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

186952140 is a wasteful number, since it uses less digits than its factorization.

186952140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038638 (or 1038633 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 186952140 is about 13673.0442842843. The cubic root of 186952140 is about 571.7991168686.

The spelling of 186952140 in words is "one hundred eighty-six million, nine hundred fifty-two thousand, one hundred forty".