186920230 has 32 divisors (see below), whose sum is σ = 393906240. Its totient is φ = 62522880.

The previous prime is 186920221. The next prime is 186920257. The reversal of 186920230 is 32029681.

It is a junction number, because it is equal to n+sod(n) for n = 186920192 and 186920201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29695 + ... + 35434.

It is an arithmetic number, because the mean of its divisors is an integer number (12309570).

Almost surely, 2^186920230 is an apocalyptic number.

186920230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

186920230 is an abundant number, since it is smaller than the sum of its proper divisors (206986010).

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

186920230 is a wasteful number, since it uses less digits than its factorization.

186920230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65184.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 186920230 is about 13671.8773399998. The cubic root of 186920230 is about 571.7665824313.

The spelling of 186920230 in words is "one hundred eighty-six million, nine hundred twenty thousand, two hundred thirty".