45455628 has 12 divisors (see below), whose sum is σ = 106063160. Its totient is φ = 15151872.

The previous prime is 45455623. The next prime is 45455629. The reversal of 45455628 is 82655454.

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

It is not an unprimeable number, because it can be changed into a prime (45455621) 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, 1893973 + ... + 1893996.

Almost surely, 2^45455628 is an apocalyptic number.

It is an amenable number.

45455628 is an abundant number, since it is smaller than the sum of its proper divisors (60607532).

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

45455628 is a wasteful number, since it uses less digits than its factorization.

45455628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787976 (or 3787974 counting only the distinct ones).

The product of its digits is 192000, while the sum is 39.

The square root of 45455628 is about 6742.0789078740. The cubic root of 45455628 is about 356.8857609039.

The spelling of 45455628 in words is "forty-five million, four hundred fifty-five thousand, six hundred twenty-eight".