18227452 has 12 divisors (see below), whose sum is σ = 32676336. Its totient is φ = 8891360.

The previous prime is 18227449. The next prime is 18227483. The reversal of 18227452 is 25472281.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 55408 + ... + 55735.

It is an arithmetic number, because the mean of its divisors is an integer number (2723028).

Almost surely, 2^18227452 is an apocalyptic number.

It is an amenable number.

18227452 is a deficient number, since it is larger than the sum of its proper divisors (14448884).

18227452 is a wasteful number, since it uses less digits than its factorization.

18227452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111188 (or 111186 counting only the distinct ones).

The product of its digits is 8960, while the sum is 31.

The square root of 18227452 is about 4269.3620132287. The cubic root of 18227452 is about 263.1733978712.

The spelling of 18227452 in words is "eighteen million, two hundred twenty-seven thousand, four hundred fifty-two".