45186928 has 20 divisors (see below), whose sum is σ = 89413920. Its totient is φ = 22112384.

The previous prime is 45186923. The next prime is 45186949. The reversal of 45186928 is 82968154.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45186923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29293 + ... + 30796.

It is an arithmetic number, because the mean of its divisors is an integer number (4470696).

Almost surely, 2^45186928 is an apocalyptic number.

It is an amenable number.

45186928 is a deficient number, since it is larger than the sum of its proper divisors (44226992).

45186928 is a wasteful number, since it uses less digits than its factorization.

45186928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60144 (or 60138 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 45186928 is about 6722.1222839219. The cubic root of 45186928 is about 356.1811559593.

The spelling of 45186928 in words is "forty-five million, one hundred eighty-six thousand, nine hundred twenty-eight".