18193049 has 8 divisors (see below), whose sum is σ = 20932800. Its totient is φ = 15488496.

The previous prime is 18193039. The next prime is 18193057. The reversal of 18193049 is 94039181.

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 18193049 - 2¹⁶ = 18127513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18193039) 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, 7679 + ... + 9764.

It is an arithmetic number, because the mean of its divisors is an integer number (2616600).

Almost surely, 2^18193049 is an apocalyptic number.

It is an amenable number.

18193049 is a deficient number, since it is larger than the sum of its proper divisors (2739751).

18193049 is a wasteful number, since it uses less digits than its factorization.

18193049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17599.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 18193049 is about 4265.3310539746. The cubic root of 18193049 is about 263.0077199949.

The spelling of 18193049 in words is "eighteen million, one hundred ninety-three thousand, forty-nine".