18392941 has 4 divisors (see below), whose sum is σ = 21020512. Its totient is φ = 15765372.

The previous prime is 18392923. The next prime is 18392947. The reversal of 18392941 is 14929381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14929381 = 173 ⋅86297.

It is not a de Polignac number, because 18392941 - 2⁵ = 18392909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18392941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18392947) 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 3 ways as a sum of consecutive naturals, for example, 1313775 + ... + 1313788.

It is an arithmetic number, because the mean of its divisors is an integer number (5255128).

Almost surely, 2^18392941 is an apocalyptic number.

It is an amenable number.

18392941 is a deficient number, since it is larger than the sum of its proper divisors (2627571).

18392941 is an equidigital number, since it uses as much as digits as its factorization.

18392941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627570.

The product of its digits is 15552, while the sum is 37.

The square root of 18392941 is about 4288.6992200433. The cubic root of 18392941 is about 263.9674594496.

The spelling of 18392941 in words is "eighteen million, three hundred ninety-two thousand, nine hundred forty-one".