45088428 has 72 divisors (see below), whose sum is σ = 133527744. Its totient is φ = 11709600.

The previous prime is 45088427. The next prime is 45088451. The reversal of 45088428 is 82488054.

It is a super-2 number, since 2×45088428² = 4065932679022368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45088427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2983 + ... + 9953.

It is an arithmetic number, because the mean of its divisors is an integer number (1854552).

Almost surely, 2^45088428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45088428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66763872).

45088428 is an abundant number, since it is smaller than the sum of its proper divisors (88439316).

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

45088428 is a wasteful number, since it uses less digits than its factorization.

45088428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7003 (or 6994 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 39.

The square root of 45088428 is about 6714.7917316921. The cubic root of 45088428 is about 355.9221624211.

The spelling of 45088428 in words is "forty-five million, eighty-eight thousand, four hundred twenty-eight".