18041001 has 16 divisors (see below), whose sum is σ = 26604480. Its totient is φ = 10782720.

The previous prime is 18040973. The next prime is 18041033. The reversal of 18041001 is 10014081.

It is not a de Polignac number, because 18041001 - 2⁵ = 18040969 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (18041081) 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, 1336 + ... + 6153.

It is an arithmetic number, because the mean of its divisors is an integer number (1662780).

Almost surely, 2^18041001 is an apocalyptic number.

18041001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18041001 is a deficient number, since it is larger than the sum of its proper divisors (8563479).

18041001 is a wasteful number, since it uses less digits than its factorization.

18041001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7576.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 18041001 is about 4247.4699528072. The cubic root of 18041001 is about 262.2729755955.

Adding to 18041001 its reverse (10014081), we get a palindrome (28055082).

The spelling of 18041001 in words is "eighteen million, forty-one thousand, one".