18060638 has 16 divisors (see below), whose sum is σ = 27751776. Its totient is φ = 8812800.

The previous prime is 18060619. The next prime is 18060641. The reversal of 18060638 is 83606081.

It is a congruent number.

It is an unprimeable number.

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, 14438 + ... + 15638.

It is an arithmetic number, because the mean of its divisors is an integer number (1734486).

Almost surely, 2^18060638 is an apocalyptic number.

18060638 is a deficient number, since it is larger than the sum of its proper divisors (9691138).

18060638 is a wasteful number, since it uses less digits than its factorization.

18060638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 18060638 is about 4249.7809355307. The cubic root of 18060638 is about 262.3680994180.

The spelling of 18060638 in words is "eighteen million, sixty thousand, six hundred thirty-eight".