45144424 has 16 divisors (see below), whose sum is σ = 91157220. Its totient is φ = 20835840.

The previous prime is 45144371. The next prime is 45144431. The reversal of 45144424 is 42444154.

It can be written as a sum of positive squares in 2 ways, for example, as 41602500 + 3541924 = 6450^2 + 1882^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45144392 and 45144401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216937 + ... + 217144.

Almost surely, 2^45144424 is an apocalyptic number.

It is an amenable number.

45144424 is an abundant number, since it is smaller than the sum of its proper divisors (46012796).

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

45144424 is a wasteful number, since it uses less digits than its factorization.

45144424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434100 (or 434096 counting only the distinct ones).

The product of its digits is 10240, while the sum is 28.

The square root of 45144424 is about 6718.9600385774. The cubic root of 45144424 is about 356.0694431716.

Adding to 45144424 its reverse (42444154), we get a palindrome (87588578).

The spelling of 45144424 in words is "forty-five million, one hundred forty-four thousand, four hundred twenty-four".