18227368 has 8 divisors (see below), whose sum is σ = 34176330. Its totient is φ = 9113680.

The previous prime is 18227359. The next prime is 18227371. The reversal of 18227368 is 86372281.

It can be written as a sum of positive squares in only one way, i.e., 12264004 + 5963364 = 3502^2 + 2442^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139203 + ... + 1139218.

Almost surely, 2^18227368 is an apocalyptic number.

It is an amenable number.

18227368 is a deficient number, since it is larger than the sum of its proper divisors (15948962).

18227368 is a wasteful number, since it uses less digits than its factorization.

18227368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278427 (or 2278423 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 18227368 is about 4269.3521756819. The cubic root of 18227368 is about 263.1729935982.

The spelling of 18227368 in words is "eighteen million, two hundred twenty-seven thousand, three hundred sixty-eight".