18541022 has 4 divisors (see below), whose sum is σ = 27811536. Its totient is φ = 9270510.

The previous prime is 18541021. The next prime is 18541027. The reversal of 18541022 is 22014581.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18541021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4635254 + ... + 4635257.

It is an arithmetic number, because the mean of its divisors is an integer number (6952884).

Almost surely, 2^18541022 is an apocalyptic number.

18541022 is a deficient number, since it is larger than the sum of its proper divisors (9270514).

18541022 is an equidigital number, since it uses as much as digits as its factorization.

18541022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9270513.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 18541022 is about 4305.9287035435. The cubic root of 18541022 is about 264.6739647655.

The spelling of 18541022 in words is "eighteen million, five hundred forty-one thousand, twenty-two".