18693044 has 6 divisors (see below), whose sum is σ = 32712834. Its totient is φ = 9346520.

The previous prime is 18693019. The next prime is 18693049. The reversal of 18693044 is 44039681.

It can be written as a sum of positive squares in only one way, i.e., 15904144 + 2788900 = 3988^2 + 1670^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18692995 and 18693013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18693049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2336627 + ... + 2336634.

It is an arithmetic number, because the mean of its divisors is an integer number (5452139).

Almost surely, 2^18693044 is an apocalyptic number.

It is an amenable number.

18693044 is a deficient number, since it is larger than the sum of its proper divisors (14019790).

18693044 is a wasteful number, since it uses less digits than its factorization.

18693044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673265 (or 4673263 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 18693044 is about 4323.5453044926. The cubic root of 18693044 is about 265.3953704311.

It can be divided in two parts, 1869 and 3044, that added together give a cube (4913 = 17³).

The spelling of 18693044 in words is "eighteen million, six hundred ninety-three thousand, forty-four".