18969941 has 8 divisors (see below), whose sum is σ = 19186944. Its totient is φ = 18754560.

The previous prime is 18969931. The next prime is 18969947. The reversal of 18969941 is 14996981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18969941 - 2⁶ = 18969877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18969947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57146 + ... + 57476.

It is an arithmetic number, because the mean of its divisors is an integer number (2398368).

Almost surely, 2^18969941 is an apocalyptic number.

It is an amenable number.

18969941 is a deficient number, since it is larger than the sum of its proper divisors (217003).

18969941 is a wasteful number, since it uses less digits than its factorization.

18969941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811.

The product of its digits is 139968, while the sum is 47.

The square root of 18969941 is about 4355.4495749578. The cubic root of 18969941 is about 266.6993722039.

The spelling of 18969941 in words is "eighteen million, nine hundred sixty-nine thousand, nine hundred forty-one".