18794401 has 16 divisors (see below), whose sum is σ = 21634560. Its totient is φ = 16208640.

The previous prime is 18794393. The next prime is 18794411. The reversal of 18794401 is 10449781.

It is a cyclic number.

It is not a de Polignac number, because 18794401 - 2³ = 18794393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18794411) 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 15 ways as a sum of consecutive naturals, for example, 9075 + ... + 10951.

It is an arithmetic number, because the mean of its divisors is an integer number (1352160).

Almost surely, 2^18794401 is an apocalyptic number.

It is an amenable number.

18794401 is a deficient number, since it is larger than the sum of its proper divisors (2840159).

18794401 is a wasteful number, since it uses less digits than its factorization.

18794401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 18794401 is about 4335.2509731272. The cubic root of 18794401 is about 265.8741796646.

The spelling of 18794401 in words is "eighteen million, seven hundred ninety-four thousand, four hundred one".