18742334 has 16 divisors (see below), whose sum is σ = 30563568. Its totient is φ = 8568192.

The previous prime is 18742319. The next prime is 18742349. The reversal of 18742334 is 43324781.

It is an interprime number because it is at equal distance from previous prime (18742319) and next prime (18742349).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18742334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587 + ... + 6150.

It is an arithmetic number, because the mean of its divisors is an integer number (1910223).

Almost surely, 2^18742334 is an apocalyptic number.

18742334 is a deficient number, since it is larger than the sum of its proper divisors (11821234).

18742334 is a wasteful number, since it uses less digits than its factorization.

18742334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6859.

The product of its digits is 16128, while the sum is 32.

The square root of 18742334 is about 4329.2417349924. The cubic root of 18742334 is about 265.6284314020.

The spelling of 18742334 in words is "eighteen million, seven hundred forty-two thousand, three hundred thirty-four".