18822044 has 24 divisors (see below), whose sum is σ = 34280400. Its totient is φ = 9031680.

The previous prime is 18821983. The next prime is 18822059. The reversal of 18822044 is 44022881.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 18821998 and 18822016.

It is a congruent 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, 24092 + ... + 24860.

It is an arithmetic number, because the mean of its divisors is an integer number (1428350).

Almost surely, 2^18822044 is an apocalyptic number.

It is an amenable number.

18822044 is a deficient number, since it is larger than the sum of its proper divisors (15458356).

18822044 is a wasteful number, since it uses less digits than its factorization.

18822044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 18822044 is about 4338.4379677483. The cubic root of 18822044 is about 266.0044659774.

The spelling of 18822044 in words is "eighteen million, eight hundred twenty-two thousand, forty-four".