18394001 has 8 divisors (see below), whose sum is σ = 18772608. Its totient is φ = 18018000.

The previous prime is 18393989. The next prime is 18394073. The reversal of 18394001 is 10049381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18394001 - 2⁶ = 18393937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18399001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19736 + ... + 20646.

It is an arithmetic number, because the mean of its divisors is an integer number (2346576).

Almost surely, 2^18394001 is an apocalyptic number.

It is an amenable number.

18394001 is a deficient number, since it is larger than the sum of its proper divisors (378607).

18394001 is an equidigital number, since it uses as much as digits as its factorization.

18394001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 18394001 is about 4288.8227988575. The cubic root of 18394001 is about 263.9725302379.

The spelling of 18394001 in words is "eighteen million, three hundred ninety-four thousand, one".