45420244 has 12 divisors (see below), whose sum is σ = 79774324. Its totient is φ = 22627584.

The previous prime is 45420229. The next prime is 45420247. The reversal of 45420244 is 44202454.

It is a happy number.

45420244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7128900 + 38291344 = 2670^2 + 6188^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45420247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19389 + ... + 21604.

Almost surely, 2^45420244 is an apocalyptic number.

It is an amenable number.

45420244 is a deficient number, since it is larger than the sum of its proper divisors (34354080).

45420244 is a wasteful number, since it uses less digits than its factorization.

45420244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41274 (or 41272 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 45420244 is about 6739.4542805779. The cubic root of 45420244 is about 356.7931334016.

Adding to 45420244 its reverse (44202454), we get a palindrome (89622698).

The spelling of 45420244 in words is "forty-five million, four hundred twenty thousand, two hundred forty-four".