45442224 has 120 divisors (see below), whose sum is σ = 141888240. Its totient is φ = 13492224.

The previous prime is 45442157. The next prime is 45442277. The reversal of 45442224 is 42224454.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46024 + ... + 47000.

It is an arithmetic number, because the mean of its divisors is an integer number (1182402).

Almost surely, 2^45442224 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 45442224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70944120).

45442224 is an abundant number, since it is smaller than the sum of its proper divisors (96446016).

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

45442224 is a wasteful number, since it uses less digits than its factorization.

45442224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1018 counting only the distinct ones).

The product of its digits is 10240, while the sum is 27.

The square root of 45442224 is about 6741.0847791732. The cubic root of 45442224 is about 356.8506778479.

Adding to 45442224 its reverse (42224454), we get a palindrome (87666678).

The spelling of 45442224 in words is "forty-five million, four hundred forty-two thousand, two hundred twenty-four".