18514000 has 40 divisors (see below), whose sum is σ = 44771688. Its totient is φ = 7404800.

The previous prime is 18513991. The next prime is 18514009. The reversal of 18514000 is 41581.

It is an interprime number because it is at equal distance from previous prime (18513991) and next prime (18514009).

It can be written as a sum of positive squares in 4 ways, for example, as 3952144 + 14561856 = 1988^2 + 3816^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18514009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2629 + ... + 6628.

Almost surely, 2^18514000 is an apocalyptic number.

18514000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18514000 is an abundant number, since it is smaller than the sum of its proper divisors (26257688).

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

18514000 is an equidigital number, since it uses as much as digits as its factorization.

18514000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9280 (or 9264 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 18514000 is about 4302.7897926810. The cubic root of 18514000 is about 264.5453221412.

Adding to 18514000 its reverse (41581), we get a palindrome (18555581).

It can be divided in two parts, 1 and 8514000, that added together give a triangular number (8514001 = T₄₁₂₆).

The spelling of 18514000 in words is "eighteen million, five hundred fourteen thousand".