18680037 has 8 divisors (see below), whose sum is σ = 24996480. Its totient is φ = 12408480.

The previous prime is 18680033. The next prime is 18680047. The reversal of 18680037 is 73008681.

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

It is not a de Polignac number, because 18680037 - 2² = 18680033 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18680033) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10237 + ... + 11922.

It is an arithmetic number, because the mean of its divisors is an integer number (3124560).

Almost surely, 2^18680037 is an apocalyptic number.

It is an amenable number.

18680037 is a deficient number, since it is larger than the sum of its proper divisors (6316443).

18680037 is a wasteful number, since it uses less digits than its factorization.

18680037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22443.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 18680037 is about 4322.0408373823. The cubic root of 18680037 is about 265.3338003171. Note that the first 3 decimals are identical.

The spelling of 18680037 in words is "eighteen million, six hundred eighty thousand, thirty-seven".