18626241 has 16 divisors (see below), whose sum is σ = 25804800. Its totient is φ = 11941968.

The previous prime is 18626233. The next prime is 18626243. The reversal of 18626241 is 14262681.

It is not a de Polignac number, because 18626241 - 2³ = 18626233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18626199 and 18626208.

It is not an unprimeable number, because it can be changed into a prime (18626243) 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 15 ways as a sum of consecutive naturals, for example, 7200 + ... + 9438.

It is an arithmetic number, because the mean of its divisors is an integer number (1612800).

Almost surely, 2^18626241 is an apocalyptic number.

It is an amenable number.

18626241 is a deficient number, since it is larger than the sum of its proper divisors (7178559).

18626241 is a wasteful number, since it uses less digits than its factorization.

18626241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348.

The product of its digits is 4608, while the sum is 30.

The square root of 18626241 is about 4315.8129014127. The cubic root of 18626241 is about 265.0788468358.

The spelling of 18626241 in words is "eighteen million, six hundred twenty-six thousand, two hundred forty-one".