18041000 has 32 divisors (see below), whose sum is σ = 42218280. Its totient is φ = 7216000.

The previous prime is 18040973. The next prime is 18041033. The reversal of 18041000 is 14081.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1378276 + 16662724 = 1174^2 + 4082^2 .

It is a plaindrome in base 14.

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, 8021 + ... + 10020.

Almost surely, 2^18041000 is an apocalyptic number.

18041000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18041000 is an abundant number, since it is smaller than the sum of its proper divisors (24177280).

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

18041000 is a wasteful number, since it uses less digits than its factorization.

18041000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18062 (or 18048 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 18041000 is about 4247.4698350901. The cubic root of 18041000 is about 262.2729707497.

Adding to 18041000 its reverse (14081), we get a palindrome (18055081).

The spelling of 18041000 in words is "eighteen million, forty-one thousand".