45243818 has 16 divisors (see below), whose sum is σ = 70312704. Its totient is φ = 21811680.

The previous prime is 45243811. The next prime is 45243833. The reversal of 45243818 is 81834254.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45243811) 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, 17846 + ... + 20222.

It is an arithmetic number, because the mean of its divisors is an integer number (4394544).

Almost surely, 2^45243818 is an apocalyptic number.

45243818 is a deficient number, since it is larger than the sum of its proper divisors (25068886).

45243818 is a wasteful number, since it uses less digits than its factorization.

45243818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717.

The product of its digits is 30720, while the sum is 35.

The square root of 45243818 is about 6726.3525034003. The cubic root of 45243818 is about 356.3305697322.

The spelling of 45243818 in words is "forty-five million, two hundred forty-three thousand, eight hundred eighteen".