45290228 has 12 divisors (see below), whose sum is σ = 81991140. Its totient is φ = 21864192.

The previous prime is 45290177. The next prime is 45290239. The reversal of 45290228 is 82209254.

45290228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36457444 + 8832784 = 6038^2 + 2972^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45290194 and 45290203.

It is a congruent number.

It is an unprimeable number.

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, 195101 + ... + 195332.

It is an arithmetic number, because the mean of its divisors is an integer number (6832595).

Almost surely, 2^45290228 is an apocalyptic number.

It is an amenable number.

45290228 is a deficient number, since it is larger than the sum of its proper divisors (36700912).

45290228 is a wasteful number, since it uses less digits than its factorization.

45290228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390466 (or 390464 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 45290228 is about 6729.8014829562. The cubic root of 45290228 is about 356.4523664857.

The spelling of 45290228 in words is "forty-five million, two hundred ninety thousand, two hundred twenty-eight".