18196364 has 12 divisors (see below), whose sum is σ = 31874304. Its totient is φ = 9089424.

The previous prime is 18196337. The next prime is 18196391. The reversal of 18196364 is 46369181.

It is an interprime number because it is at equal distance from previous prime (18196337) and next prime (18196391).

It is a super-2 number, since 2×18196364² = 662215325640992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5429 + ... + 8115.

It is an arithmetic number, because the mean of its divisors is an integer number (2656192).

Almost surely, 2^18196364 is an apocalyptic number.

It is an amenable number.

18196364 is a deficient number, since it is larger than the sum of its proper divisors (13677940).

18196364 is a wasteful number, since it uses less digits than its factorization.

18196364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4384 (or 4382 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 18196364 is about 4265.7196344814. The cubic root of 18196364 is about 263.0236934516.

The spelling of 18196364 in words is "eighteen million, one hundred ninety-six thousand, three hundred sixty-four".