45043418 has 16 divisors (see below), whose sum is σ = 77395200. Its totient is φ = 19259856.

The previous prime is 45043417. The next prime is 45043423. The reversal of 45043418 is 81434054.

It is not an unprimeable number, because it can be changed into a prime (45043417) 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, 3008 + ... + 9956.

It is an arithmetic number, because the mean of its divisors is an integer number (4837200).

Almost surely, 2^45043418 is an apocalyptic number.

45043418 is a deficient number, since it is larger than the sum of its proper divisors (32351782).

45043418 is a wasteful number, since it uses less digits than its factorization.

45043418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7421.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 45043418 is about 6711.4393389198. The cubic root of 45043418 is about 355.8036886357.

The spelling of 45043418 in words is "forty-five million, forty-three thousand, four hundred eighteen".