186772940 has 12 divisors (see below), whose sum is σ = 392223216. Its totient is φ = 74709168.

The previous prime is 186772939. The next prime is 186772973. The reversal of 186772940 is 49277681.

It is a super-2 number, since 2×186772940² = 69768262232487200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 186772891 and 186772900.

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, 4669304 + ... + 4669343.

It is an arithmetic number, because the mean of its divisors is an integer number (32685268).

Almost surely, 2^186772940 is an apocalyptic number.

186772940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

186772940 is an abundant number, since it is smaller than the sum of its proper divisors (205450276).

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

186772940 is a wasteful number, since it uses less digits than its factorization.

186772940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9338656 (or 9338654 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 186772940 is about 13666.4896736507. The cubic root of 186772940 is about 571.6163621479.

The spelling of 186772940 in words is "one hundred eighty-six million, seven hundred seventy-two thousand, nine hundred forty".