18052642 has 8 divisors (see below), whose sum is σ = 27116316. Its totient is φ = 9013872.

The previous prime is 18052637. The next prime is 18052651. The reversal of 18052642 is 24625081.

It can be written as a sum of positive squares in 2 ways, for example, as 17969121 + 83521 = 4239^2 + 289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18052642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4293 + ... + 7384.

Almost surely, 2^18052642 is an apocalyptic number.

18052642 is a deficient number, since it is larger than the sum of its proper divisors (9063674).

18052642 is a wasteful number, since it uses less digits than its factorization.

18052642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12452.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 18052642 is about 4248.8400770093. The cubic root of 18052642 is about 262.3293742264.

The spelling of 18052642 in words is "eighteen million, fifty-two thousand, six hundred forty-two".