18265742 has 16 divisors (see below), whose sum is σ = 29970864. Its totient is φ = 8280000.

The previous prime is 18265729. The next prime is 18265747. The reversal of 18265742 is 24756281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18265747) 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 7 ways as a sum of consecutive naturals, for example, 9242 + ... + 11042.

It is an arithmetic number, because the mean of its divisors is an integer number (1873179).

Almost surely, 2^18265742 is an apocalyptic number.

18265742 is a deficient number, since it is larger than the sum of its proper divisors (11705122).

18265742 is a wasteful number, since it uses less digits than its factorization.

18265742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275.

The product of its digits is 26880, while the sum is 35.

The square root of 18265742 is about 4273.8439372537. The cubic root of 18265742 is about 263.3575498034.

The spelling of 18265742 in words is "eighteen million, two hundred sixty-five thousand, seven hundred forty-two".