18614401 has 8 divisors (see below), whose sum is σ = 20246184. Its totient is φ = 17011200.

The previous prime is 18614381. The next prime is 18614413. The reversal of 18614401 is 10441681.

It can be written as a sum of positive squares in 4 ways, for example, as 10497600 + 8116801 = 3240^2 + 2849^2 .

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 18614401 - 2¹¹ = 18612353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18614461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5776 + ... + 8401.

It is an arithmetic number, because the mean of its divisors is an integer number (2530773).

Almost surely, 2^18614401 is an apocalyptic number.

It is an amenable number.

18614401 is a deficient number, since it is larger than the sum of its proper divisors (1631783).

18614401 is a wasteful number, since it uses less digits than its factorization.

18614401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14291.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 18614401 is about 4314.4409834879. The cubic root of 18614401 is about 265.0226680502.

The spelling of 18614401 in words is "eighteen million, six hundred fourteen thousand, four hundred one".