18296138 has 16 divisors (see below), whose sum is σ = 32377344. Its totient is φ = 7588080.

The previous prime is 18296119. The next prime is 18296141. The reversal of 18296138 is 83169281.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20645 + ... + 21512.

It is an arithmetic number, because the mean of its divisors is an integer number (2023584).

Almost surely, 2^18296138 is an apocalyptic number.

18296138 is a deficient number, since it is larger than the sum of its proper divisors (14081206).

18296138 is a wasteful number, since it uses less digits than its factorization.

18296138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42197.

The product of its digits is 20736, while the sum is 38.

The square root of 18296138 is about 4277.3985084394. The cubic root of 18296138 is about 263.5035531760.

The spelling of 18296138 in words is "eighteen million, two hundred ninety-six thousand, one hundred thirty-eight".