45489544 has 8 divisors (see below), whose sum is σ = 85292910. Its totient is φ = 22744768.

The previous prime is 45489533. The next prime is 45489599. The reversal of 45489544 is 44598454.

It can be written as a sum of positive squares in only one way, i.e., 43956900 + 1532644 = 6630^2 + 1238^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×45489544² = 4138597226655872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45489544.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2843089 + ... + 2843104.

Almost surely, 2^45489544 is an apocalyptic number.

It is an amenable number.

45489544 is a deficient number, since it is larger than the sum of its proper divisors (39803366).

45489544 is a wasteful number, since it uses less digits than its factorization.

45489544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686199 (or 5686195 counting only the distinct ones).

The product of its digits is 460800, while the sum is 43.

The square root of 45489544 is about 6744.5936867983. The cubic root of 45489544 is about 356.9745003979.

It can be divided in two parts, 454 and 89544, that added together give a palindrome (89998).

The spelling of 45489544 in words is "forty-five million, four hundred eighty-nine thousand, five hundred forty-four".