45218445 has 8 divisors (see below), whose sum is σ = 72349536. Its totient is φ = 24116496.

The previous prime is 45218401. The next prime is 45218447. The reversal of 45218445 is 54481254.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45218445 - 2⁸ = 45218189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45218447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1507267 + ... + 1507296.

It is an arithmetic number, because the mean of its divisors is an integer number (9043692).

Almost surely, 2^45218445 is an apocalyptic number.

It is an amenable number.

45218445 is a deficient number, since it is larger than the sum of its proper divisors (27131091).

45218445 is a wasteful number, since it uses less digits than its factorization.

45218445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3014571.

The product of its digits is 25600, while the sum is 33.

The square root of 45218445 is about 6724.4661498144. The cubic root of 45218445 is about 356.2639465146.

Adding to 45218445 its reverse (54481254), we get a palindrome (99699699).

The spelling of 45218445 in words is "forty-five million, two hundred eighteen thousand, four hundred forty-five".