45221596 has 48 divisors (see below), whose sum is σ = 95961600. Its totient is φ = 18214848.

The previous prime is 45221573. The next prime is 45221597. The reversal of 45221596 is 69512254.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45221597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88590 + ... + 89098.

It is an arithmetic number, because the mean of its divisors is an integer number (1999200).

Almost surely, 2^45221596 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 45221596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47980800).

45221596 is an abundant number, since it is smaller than the sum of its proper divisors (50740004).

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

45221596 is a wasteful number, since it uses less digits than its factorization.

45221596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 704 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 45221596 is about 6724.7004394248. The cubic root of 45221596 is about 356.2722216158.

The spelling of 45221596 in words is "forty-five million, two hundred twenty-one thousand, five hundred ninety-six".