18227433 has 16 divisors (see below), whose sum is σ = 28129280. Its totient is φ = 10282896.

The previous prime is 18227371. The next prime is 18227437. The reversal of 18227433 is 33472281.

It is not a de Polignac number, because 18227433 - 2¹⁰ = 18226409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18227433.

It is not an unprimeable number, because it can be changed into a prime (18227437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3835 + ... + 7152.

It is an arithmetic number, because the mean of its divisors is an integer number (1758080).

Almost surely, 2^18227433 is an apocalyptic number.

It is an amenable number.

18227433 is a deficient number, since it is larger than the sum of its proper divisors (9901847).

18227433 is a wasteful number, since it uses less digits than its factorization.

18227433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11076.

The product of its digits is 8064, while the sum is 30.

The square root of 18227433 is about 4269.3597880713. The cubic root of 18227433 is about 263.1733064286.

The spelling of 18227433 in words is "eighteen million, two hundred twenty-seven thousand, four hundred thirty-three".