18401042 has 16 divisors (see below), whose sum is σ = 31083264. Its totient is φ = 8094000.

The previous prime is 18401041. The next prime is 18401057. The reversal of 18401042 is 24010481.

It is not an unprimeable number, because it can be changed into a prime (18401041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12809 + ... + 14172.

It is an arithmetic number, because the mean of its divisors is an integer number (1942704).

Almost surely, 2^18401042 is an apocalyptic number.

18401042 is a deficient number, since it is larger than the sum of its proper divisors (12682222).

18401042 is a wasteful number, since it uses less digits than its factorization.

18401042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27025.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 18401042 is about 4289.6435749372. The cubic root of 18401042 is about 264.0062077665.

It can be divided in two parts, 1840 and 1042, that added together give a palindrome (2882).

The spelling of 18401042 in words is "eighteen million, four hundred one thousand, forty-two".