45489228 has 12 divisors (see below), whose sum is σ = 106141560. Its totient is φ = 15163072.

The previous prime is 45489149. The next prime is 45489233. The reversal of 45489228 is 82298454.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 45489228.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1895373 + ... + 1895396.

It is an arithmetic number, because the mean of its divisors is an integer number (8845130).

Almost surely, 2^45489228 is an apocalyptic number.

It is an amenable number.

45489228 is an abundant number, since it is smaller than the sum of its proper divisors (60652332).

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

45489228 is a wasteful number, since it uses less digits than its factorization.

45489228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790776 (or 3790774 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 45489228 is about 6744.5702605874. The cubic root of 45489228 is about 356.9736738035.

The spelling of 45489228 in words is "forty-five million, four hundred eighty-nine thousand, two hundred twenty-eight".