4445118 has 40 divisors (see below), whose sum is σ = 10402128. Its totient is φ = 1416096.

The previous prime is 4445113. The next prime is 4445153. The reversal of 4445118 is 8115444.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 4445091 and 4445100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445113) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3130 + ... + 4322.

Almost surely, 2^4445118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4445118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5201064).

4445118 is an abundant number, since it is smaller than the sum of its proper divisors (5957010).

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

4445118 is a wasteful number, since it uses less digits than its factorization.

4445118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230 (or 1221 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 4445118 is about 2108.3448484534. The cubic root of 4445118 is about 164.4224435234.

The spelling of 4445118 in words is "four million, four hundred forty-five thousand, one hundred eighteen".