18994041 has 32 divisors (see below), whose sum is σ = 31703040. Its totient is φ = 11134800.

The previous prime is 18994039. The next prime is 18994051. The reversal of 18994041 is 14049981.

It is not a de Polignac number, because 18994041 - 2¹ = 18994039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18993987 and 18994005.

It is not an unprimeable number, because it can be changed into a prime (18994051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8176 + ... + 10238.

It is an arithmetic number, because the mean of its divisors is an integer number (990720).

Almost surely, 2^18994041 is an apocalyptic number.

18994041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18994041 is a deficient number, since it is larger than the sum of its proper divisors (12708999).

18994041 is a wasteful number, since it uses less digits than its factorization.

18994041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 18994041 is about 4358.2153457579. The cubic root of 18994041 is about 266.8122654545.

It can be divided in two parts, 189940 and 41, that added together give a palindrome (189981).

The spelling of 18994041 in words is "eighteen million, nine hundred ninety-four thousand, forty-one".