18701401 has 8 divisors (see below), whose sum is σ = 19495424. Its totient is φ = 17919360.

The previous prime is 18701399. The next prime is 18701413. The reversal of 18701401 is 10410781.

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 18701401 - 2¹ = 18701399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18701701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265 + ... + 6121.

It is an arithmetic number, because the mean of its divisors is an integer number (2436928).

Almost surely, 2^18701401 is an apocalyptic number.

It is an amenable number.

18701401 is a deficient number, since it is larger than the sum of its proper divisors (794023).

18701401 is a wasteful number, since it uses less digits than its factorization.

18701401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5991.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 18701401 is about 4324.5116487298. The cubic root of 18701401 is about 265.4349141722.

The spelling of 18701401 in words is "eighteen million, seven hundred one thousand, four hundred one".