18842007 has 8 divisors (see below), whose sum is σ = 25198576. Its totient is φ = 12523392.

The previous prime is 18842003. The next prime is 18842009. The reversal of 18842007 is 70024881.

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

It is not a de Polignac number, because 18842007 - 2² = 18842003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18842003) by changing a digit.

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, 8308 + ... + 10329.

It is an arithmetic number, because the mean of its divisors is an integer number (3149822).

Almost surely, 2^18842007 is an apocalyptic number.

18842007 is a deficient number, since it is larger than the sum of its proper divisors (6356569).

18842007 is a wasteful number, since it uses less digits than its factorization.

18842007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18977.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 18842007 is about 4340.7380708815. The cubic root of 18842007 is about 266.0984757969.

Adding to 18842007 its reverse (70024881), we get a palindrome (88866888).

It can be divided in two parts, 188 and 42007, that added together give a triangular number (42195 = T₂₉₀).

The spelling of 18842007 in words is "eighteen million, eight hundred forty-two thousand, seven".