18436941 has 12 divisors (see below), whose sum is σ = 26969280. Its totient is φ = 12135240.

The previous prime is 18436937. The next prime is 18436987. The reversal of 18436941 is 14963481.

It is not a de Polignac number, because 18436941 - 2² = 18436937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18436896 and 18436905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18436931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12255 + ... + 13676.

It is an arithmetic number, because the mean of its divisors is an integer number (2247440).

Almost surely, 2^18436941 is an apocalyptic number.

It is an amenable number.

18436941 is a deficient number, since it is larger than the sum of its proper divisors (8532339).

18436941 is a wasteful number, since it uses less digits than its factorization.

18436941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26016 (or 26013 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 18436941 is about 4293.8259163594. The cubic root of 18436941 is about 264.1777814233.

The spelling of 18436941 in words is "eighteen million, four hundred thirty-six thousand, nine hundred forty-one".