18924041 has 2 divisors, whose sum is σ = 18924042. Its totient is φ = 18924040.

The previous prime is 18924023. The next prime is 18924047. The reversal of 18924041 is 14042981.

18924041 is nontrivially palindromic in base 8.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16168441 + 2755600 = 4021^2 + 1660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18924041 is a prime.

It is equal to p_1206479 and since 18924041 and 1206479 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 18923995 and 18924013.

It is not a weakly prime, because it can be changed into another prime (18924047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9462020 + 9462021.

It is an arithmetic number, because the mean of its divisors is an integer number (9462021).

Almost surely, 2^18924041 is an apocalyptic number.

It is an amenable number.

18924041 is a deficient number, since it is larger than the sum of its proper divisors (1).

18924041 is an equidigital number, since it uses as much as digits as its factorization.

18924041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 18924041 is about 4350.1771228307. The cubic root of 18924041 is about 266.4840949972.

The spelling of 18924041 in words is "eighteen million, nine hundred twenty-four thousand, forty-one".