18540606 has 16 divisors (see below), whose sum is σ = 42378624. Its totient is φ = 5297304.

The previous prime is 18540593. The next prime is 18540649. The reversal of 18540606 is 60604581.

18540606 is nontrivially palindromic in base 12.

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, 220680 + ... + 220763.

It is an arithmetic number, because the mean of its divisors is an integer number (2648664).

Almost surely, 2^18540606 is an apocalyptic number.

18540606 is an abundant number, since it is smaller than the sum of its proper divisors (23838018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18540606 is a wasteful number, since it uses less digits than its factorization.

18540606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441455.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 18540606 is about 4305.8803977816. The cubic root of 18540606 is about 264.6719852775.

The spelling of 18540606 in words is "eighteen million, five hundred forty thousand, six hundred six".