18235044 has 60 divisors (see below), whose sum is σ = 49762944. Its totient is φ = 5811696.

The previous prime is 18235039. The next prime is 18235057. The reversal of 18235044 is 44053281.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 = 18234999 and 18235017.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6229 + ... + 8675.

Almost surely, 2^18235044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18235044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24881472).

18235044 is an abundant number, since it is smaller than the sum of its proper divisors (31527900).

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

18235044 is a wasteful number, since it uses less digits than its factorization.

18235044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486 (or 2475 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 18235044 is about 4270.2510464843. The cubic root of 18235044 is about 263.2099313209.

The spelling of 18235044 in words is "eighteen million, two hundred thirty-five thousand, forty-four".