18280014 has 32 divisors (see below), whose sum is σ = 39432960. Its totient is φ = 5630400.

The previous prime is 18280013. The next prime is 18280027. The reversal of 18280014 is 41008281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18280013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2719 + ... + 6629.

It is an arithmetic number, because the mean of its divisors is an integer number (1232280).

Almost surely, 2^18280014 is an apocalyptic number.

18280014 is an abundant number, since it is smaller than the sum of its proper divisors (21152946).

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

18280014 is a wasteful number, since it uses less digits than its factorization.

18280014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 18280014 is about 4275.5133025170. The cubic root of 18280014 is about 263.4261237205.

Adding to 18280014 its reverse (41008281), we get a palindrome (59288295).

The spelling of 18280014 in words is "eighteen million, two hundred eighty thousand, fourteen".