45515444 has 12 divisors (see below), whose sum is σ = 85779204. Its totient is φ = 21007104.

The previous prime is 45515417. The next prime is 45515447. The reversal of 45515444 is 44451554.

It can be written as a sum of positive squares in 2 ways, for example, as 19891600 + 25623844 = 4460^2 + 5062^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45515444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45515447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437597 + ... + 437700.

It is an arithmetic number, because the mean of its divisors is an integer number (7148267).

Almost surely, 2^45515444 is an apocalyptic number.

It is an amenable number.

45515444 is a deficient number, since it is larger than the sum of its proper divisors (40263760).

45515444 is a wasteful number, since it uses less digits than its factorization.

45515444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875314 (or 875312 counting only the distinct ones).

The product of its digits is 32000, while the sum is 32.

The square root of 45515444 is about 6746.5134699339. The cubic root of 45515444 is about 357.0422367361.

Adding to 45515444 its reverse (44451554), we get a palindrome (89966998).

The spelling of 45515444 in words is "forty-five million, five hundred fifteen thousand, four hundred forty-four".