18227324 has 6 divisors (see below), whose sum is σ = 31897824. Its totient is φ = 9113660.

The previous prime is 18227323. The next prime is 18227359. The reversal of 18227324 is 42372281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18227323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2278412 + ... + 2278419.

It is an arithmetic number, because the mean of its divisors is an integer number (5316304).

Almost surely, 2^18227324 is an apocalyptic number.

It is an amenable number.

18227324 is a deficient number, since it is larger than the sum of its proper divisors (13670500).

18227324 is a wasteful number, since it uses less digits than its factorization.

18227324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4556835 (or 4556833 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 18227324 is about 4269.3470226722. The cubic root of 18227324 is about 263.1727818357.

The spelling of 18227324 in words is "eighteen million, two hundred twenty-seven thousand, three hundred twenty-four".