45445369 has 4 divisors (see below), whose sum is σ = 48118644. Its totient is φ = 42772096.

The previous prime is 45445357. The next prime is 45445417. The reversal of 45445369 is 96354454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15327225 + 30118144 = 3915^2 + 5488^2 .

It is a cyclic number.

It is not a de Polignac number, because 45445369 - 2⁷ = 45445241 is a prime.

It is a super-2 number, since 2×45445369² = 4130563127092322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45445069) 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, 1336612 + ... + 1336645.

It is an arithmetic number, because the mean of its divisors is an integer number (12029661).

Almost surely, 2^45445369 is an apocalyptic number.

It is an amenable number.

45445369 is a deficient number, since it is larger than the sum of its proper divisors (2673275).

45445369 is a wasteful number, since it uses less digits than its factorization.

45445369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673274.

The product of its digits is 259200, while the sum is 40.

The square root of 45445369 is about 6741.3180461984. The cubic root of 45445369 is about 356.8589100557.

The spelling of 45445369 in words is "forty-five million, four hundred forty-five thousand, three hundred sixty-nine".