45428885 has 4 divisors (see below), whose sum is σ = 54514668. Its totient is φ = 36343104.

The previous prime is 45428869. The next prime is 45428899. The reversal of 45428885 is 58882454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25989604 + 19439281 = 5098^2 + 4409^2 .

It is a cyclic number.

It is not a de Polignac number, because 45428885 - 2⁴ = 45428869 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 4542884 + ... + 4542893.

It is an arithmetic number, because the mean of its divisors is an integer number (13628667).

Almost surely, 2^45428885 is an apocalyptic number.

It is an amenable number.

45428885 is a deficient number, since it is larger than the sum of its proper divisors (9085783).

45428885 is an equidigital number, since it uses as much as digits as its factorization.

45428885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9085782.

The product of its digits is 409600, while the sum is 44.

The square root of 45428885 is about 6740.0953257354. The cubic root of 45428885 is about 356.8157580707.

The spelling of 45428885 in words is "forty-five million, four hundred twenty-eight thousand, eight hundred eighty-five".