45543644 has 12 divisors (see below), whose sum is σ = 79812768. Its totient is φ = 22740000.

The previous prime is 45543643. The next prime is 45543649. The reversal of 45543644 is 44634554.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45543643) 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, 4577 + ... + 10584.

It is an arithmetic number, because the mean of its divisors is an integer number (6651064).

Almost surely, 2^45543644 is an apocalyptic number.

It is an amenable number.

45543644 is a deficient number, since it is larger than the sum of its proper divisors (34269124).

45543644 is a wasteful number, since it uses less digits than its factorization.

45543644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15916 (or 15914 counting only the distinct ones).

The product of its digits is 115200, while the sum is 35.

The square root of 45543644 is about 6748.6031147194. The cubic root of 45543644 is about 357.1159590561.

The spelling of 45543644 in words is "forty-five million, five hundred forty-three thousand, six hundred forty-four".