18820314 has 12 divisors (see below), whose sum is σ = 40777386. Its totient is φ = 6273432.

The previous prime is 18820313. The next prime is 18820331. The reversal of 18820314 is 41302881.

It can be written as a sum of positive squares in only one way, i.e., 10017225 + 8803089 = 3165^2 + 2967^2 .

It is not an unprimeable number, because it can be changed into a prime (18820313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 522769 + ... + 522804.

Almost surely, 2^18820314 is an apocalyptic number.

18820314 is an abundant number, since it is smaller than the sum of its proper divisors (21957072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18820314 is a wasteful number, since it uses less digits than its factorization.

18820314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045581 (or 1045578 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 18820314 is about 4338.2385826508. The cubic root of 18820314 is about 265.9963159269.

It can be divided in two parts, 188 and 20314, that added together give a palindrome (20502).

The spelling of 18820314 in words is "eighteen million, eight hundred twenty thousand, three hundred fourteen".