18616941 has 48 divisors (see below), whose sum is σ = 32880640. Its totient is φ = 9914400.

The previous prime is 18616907. The next prime is 18616943. The reversal of 18616941 is 14961681.

It is a happy number.

It is not a de Polignac number, because 18616941 - 2⁶ = 18616877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18616896 and 18616905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18616943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123216 + ... + 123366.

Almost surely, 2^18616941 is an apocalyptic number.

It is an amenable number.

18616941 is a deficient number, since it is larger than the sum of its proper divisors (14263699).

18616941 is a wasteful number, since it uses less digits than its factorization.

18616941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 283 counting only the distinct ones).

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

The square root of 18616941 is about 4314.7353337140. The cubic root of 18616941 is about 265.0347219247.

The spelling of 18616941 in words is "eighteen million, six hundred sixteen thousand, nine hundred forty-one".