18634316 has 6 divisors (see below), whose sum is σ = 32610060. Its totient is φ = 9317156.

The previous prime is 18634309. The next prime is 18634331. The reversal of 18634316 is 61343681.

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 as a sum of consecutive naturals, namely, 2329286 + ... + 2329293.

It is an arithmetic number, because the mean of its divisors is an integer number (5435010).

Almost surely, 2^18634316 is an apocalyptic number.

It is an amenable number.

18634316 is a deficient number, since it is larger than the sum of its proper divisors (13975744).

18634316 is a wasteful number, since it uses less digits than its factorization.

18634316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658583 (or 4658581 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 18634316 is about 4316.7483132562. The cubic root of 18634316 is about 265.1171476831.

Adding to 18634316 its reverse (61343681), we get a palindrome (79977997).

The spelling of 18634316 in words is "eighteen million, six hundred thirty-four thousand, three hundred sixteen".