4545018 has 32 divisors (see below), whose sum is σ = 10696320. Its totient is φ = 1425600.

The previous prime is 4545017. The next prime is 4545031. The reversal of 4545018 is 8105454.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4544982 and 4545000.

It is not an unprimeable number, because it can be changed into a prime (4545011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1558 + ... + 3393.

It is an arithmetic number, because the mean of its divisors is an integer number (334260).

Almost surely, 2^4545018 is an apocalyptic number.

4545018 is an abundant number, since it is smaller than the sum of its proper divisors (6151302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4545018 is a wasteful number, since it uses less digits than its factorization.

4545018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979 (or 4973 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 4545018 is about 2131.9047821139. The cubic root of 4545018 is about 165.6450780453.

The spelling of 4545018 in words is "four million, five hundred forty-five thousand, eighteen".