45644223 has 16 divisors (see below), whose sum is σ = 62135136. Its totient is φ = 29798400.

The previous prime is 45644197. The next prime is 45644227. The reversal of 45644223 is 32244654.

It is not a de Polignac number, because 45644223 - 2⁸ = 45643967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45644227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28615 + ... + 30167.

It is an arithmetic number, because the mean of its divisors is an integer number (3883446).

Almost surely, 2^45644223 is an apocalyptic number.

45644223 is a deficient number, since it is larger than the sum of its proper divisors (16490913).

45644223 is a wasteful number, since it uses less digits than its factorization.

45644223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754.

The product of its digits is 23040, while the sum is 30.

The square root of 45644223 is about 6756.0508435032. The cubic root of 45644223 is about 357.3786518234.

Adding to 45644223 its reverse (32244654), we get a palindrome (77888877).

The spelling of 45644223 in words is "forty-five million, six hundred forty-four thousand, two hundred twenty-three".