45221828 has 6 divisors (see below), whose sum is σ = 79138206. Its totient is φ = 22610912.

The previous prime is 45221791. The next prime is 45221831. The reversal of 45221828 is 82812254.

It can be written as a sum of positive squares in only one way, i.e., 42406144 + 2815684 = 6512^2 + 1678^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45221794 and 45221803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5652725 + ... + 5652732.

It is an arithmetic number, because the mean of its divisors is an integer number (13189701).

Almost surely, 2^45221828 is an apocalyptic number.

It is an amenable number.

45221828 is a deficient number, since it is larger than the sum of its proper divisors (33916378).

45221828 is a wasteful number, since it uses less digits than its factorization.

45221828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11305461 (or 11305459 counting only the distinct ones).

The product of its digits is 10240, while the sum is 32.

The square root of 45221828 is about 6724.7176892417. The cubic root of 45221828 is about 356.2728308750.

The spelling of 45221828 in words is "forty-five million, two hundred twenty-one thousand, eight hundred twenty-eight".