18888041 has 2 divisors, whose sum is σ = 18888042. Its totient is φ = 18888040.

The previous prime is 18888017. The next prime is 18888043. The reversal of 18888041 is 14088881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18835600 + 52441 = 4340^2 + 229^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18888041 is a prime.

Together with 18888043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18887986 and 18888004.

It is not a weakly prime, because it can be changed into another prime (18888043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9444020 + 9444021.

It is an arithmetic number, because the mean of its divisors is an integer number (9444021).

Almost surely, 2^18888041 is an apocalyptic number.

It is an amenable number.

18888041 is a deficient number, since it is larger than the sum of its proper divisors (1).

18888041 is an equidigital number, since it uses as much as digits as its factorization.

18888041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16384, while the sum is 38.

The square root of 18888041 is about 4346.0373905433. The cubic root of 18888041 is about 266.3150064257.

It can be divided in two parts, 188880 and 41, that multiplied together give a triangular number (7744080 = T₃₉₃₅).

The spelling of 18888041 in words is "eighteen million, eight hundred eighty-eight thousand, forty-one".