45418216 has 16 divisors (see below), whose sum is σ = 85703940. Its totient is φ = 22563840.

The previous prime is 45418211. The next prime is 45418249. The reversal of 45418216 is 61281454.

It can be written as a sum of positive squares in 2 ways, for example, as 45292900 + 125316 = 6730^2 + 354^2 .

It is not an unprimeable number, because it can be changed into a prime (45418211) 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, 16825 + ... + 19336.

Almost surely, 2^45418216 is an apocalyptic number.

It is an amenable number.

45418216 is a deficient number, since it is larger than the sum of its proper divisors (40285724).

45418216 is a wasteful number, since it uses less digits than its factorization.

45418216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36324 (or 36320 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 45418216 is about 6739.3038216124. The cubic root of 45418216 is about 356.7878230878.

The spelling of 45418216 in words is "forty-five million, four hundred eighteen thousand, two hundred sixteen".