9018444 has 24 divisors (see below), whose sum is σ = 21112560. Its totient is φ = 2996224.

The previous prime is 9018431. The next prime is 9018473. The reversal of 9018444 is 4448109.

It is a super-4 number, since 4×9018444⁴ (a number of 29 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3172 + ... + 5300.

It is an arithmetic number, because the mean of its divisors is an integer number (879690).

Almost surely, 2^9018444 is an apocalyptic number.

It is an amenable number.

9018444 is an abundant number, since it is smaller than the sum of its proper divisors (12094116).

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

9018444 is a wasteful number, since it uses less digits than its factorization.

9018444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489 (or 2487 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 9018444 is about 3003.0724266990. The cubic root of 9018444 is about 208.1503781875.

The spelling of 9018444 in words is "nine million, eighteen thousand, four hundred forty-four".