45972186 has 16 divisors (see below), whose sum is σ = 99017184. Its totient is φ = 14145264.

The previous prime is 45972181. The next prime is 45972187. The reversal of 45972186 is 68127954.

It is a super-2 number, since 2×45972186² = 4226883771237192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45972181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294616 + ... + 294771.

It is an arithmetic number, because the mean of its divisors is an integer number (6188574).

Almost surely, 2^45972186 is an apocalyptic number.

45972186 is an abundant number, since it is smaller than the sum of its proper divisors (53044998).

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

45972186 is a wasteful number, since it uses less digits than its factorization.

45972186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589405.

The product of its digits is 120960, while the sum is 42.

The square root of 45972186 is about 6780.2791977912. The cubic root of 45972186 is about 358.2325559519.

The spelling of 45972186 in words is "forty-five million, nine hundred seventy-two thousand, one hundred eighty-six".