45504442 has 16 divisors (see below), whose sum is σ = 71435520. Its totient is φ = 21698512.

The previous prime is 45504401. The next prime is 45504443. The reversal of 45504442 is 24440554.

It is a self number, because there is not a number n which added to its sum of digits gives 45504442.

It is not an unprimeable number, because it can be changed into a prime (45504443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16623 + ... + 19165.

It is an arithmetic number, because the mean of its divisors is an integer number (4464720).

Almost surely, 2^45504442 is an apocalyptic number.

45504442 is a deficient number, since it is larger than the sum of its proper divisors (25931078).

45504442 is a wasteful number, since it uses less digits than its factorization.

45504442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957.

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 45504442 is about 6745.6980365267. The cubic root of 45504442 is about 357.0134663167.

Adding to 45504442 its reverse (24440554), we get a palindrome (69944996).

The spelling of 45504442 in words is "forty-five million, five hundred four thousand, four hundred forty-two".