186372242 has 8 divisors (see below), whose sum is σ = 319495296. Its totient is φ = 79873812.

The previous prime is 186372227. The next prime is 186372247. The reversal of 186372242 is 242273681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×186372242² = 69469225176213128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (186372247) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6656138 + ... + 6656165.

It is an arithmetic number, because the mean of its divisors is an integer number (39936912).

Almost surely, 2^186372242 is an apocalyptic number.

186372242 is a deficient number, since it is larger than the sum of its proper divisors (133123054).

186372242 is a wasteful number, since it uses less digits than its factorization.

186372242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13312312.

The product of its digits is 32256, while the sum is 35.

The square root of 186372242 is about 13651.8219296913. The cubic root of 186372242 is about 571.2072923173.

The spelling of 186372242 in words is "one hundred eighty-six million, three hundred seventy-two thousand, two hundred forty-two".