18060493 has 4 divisors (see below), whose sum is σ = 19702368. Its totient is φ = 16418620.

The previous prime is 18060491. The next prime is 18060509. The reversal of 18060493 is 39406081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18060493 - 2¹ = 18060491 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18060491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820921 + ... + 820942.

It is an arithmetic number, because the mean of its divisors is an integer number (4925592).

Almost surely, 2^18060493 is an apocalyptic number.

It is an amenable number.

18060493 is a deficient number, since it is larger than the sum of its proper divisors (1641875).

18060493 is a wasteful number, since it uses less digits than its factorization.

18060493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641874.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 18060493 is about 4249.7638757936. The cubic root of 18060493 is about 262.3673972745.

The spelling of 18060493 in words is "eighteen million, sixty thousand, four hundred ninety-three".