45451224 has 144 divisors (see below), whose sum is σ = 154365120. Its totient is φ = 11975040.

The previous prime is 45451213. The next prime is 45451261. The reversal of 45451224 is 42215454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45369 + ... + 46359.

It is an arithmetic number, because the mean of its divisors is an integer number (1071980).

Almost surely, 2^45451224 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 45451224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77182560).

45451224 is an abundant number, since it is smaller than the sum of its proper divisors (108913896).

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

45451224 is a wasteful number, since it uses less digits than its factorization.

45451224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030 (or 1016 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 45451224 is about 6741.7522944706. The cubic root of 45451224 is about 356.8742348236.

Adding to 45451224 its reverse (42215454), we get a palindrome (87666678).

The spelling of 45451224 in words is "forty-five million, four hundred fifty-one thousand, two hundred twenty-four".