45281488 has 80 divisors (see below), whose sum is σ = 105548800. Its totient is φ = 18797184.

The previous prime is 45281477. The next prime is 45281513. The reversal of 45281488 is 88418254.

It is a self number, because there is not a number n which added to its sum of digits gives 45281488.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202945 + ... + 203167.

It is an arithmetic number, because the mean of its divisors is an integer number (1319360).

Almost surely, 2^45281488 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 45281488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52774400).

45281488 is an abundant number, since it is smaller than the sum of its proper divisors (60267312).

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

45281488 is a wasteful number, since it uses less digits than its factorization.

45281488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 269 counting only the distinct ones).

The product of its digits is 81920, while the sum is 40.

The square root of 45281488 is about 6729.1521011194. The cubic root of 45281488 is about 356.4294359019.

The spelling of 45281488 in words is "forty-five million, two hundred eighty-one thousand, four hundred eighty-eight".