45644512 has 24 divisors (see below), whose sum is σ = 93771216. Its totient is φ = 21829632.

The previous prime is 45644503. The next prime is 45644519. The reversal of 45644512 is 21544654.

It is a happy number.

45644512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45644519) 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, 30273 + ... + 31744.

It is an arithmetic number, because the mean of its divisors is an integer number (3907134).

Almost surely, 2^45644512 is an apocalyptic number.

It is an amenable number.

45644512 is an abundant number, since it is smaller than the sum of its proper divisors (48126704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45644512 is a wasteful number, since it uses less digits than its factorization.

45644512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62050 (or 62042 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 45644512 is about 6756.0722317039. The cubic root of 45644512 is about 357.3794060789.

The spelling of 45644512 in words is "forty-five million, six hundred forty-four thousand, five hundred twelve".