17987000442 has 8 divisors (see below), whose sum is σ = 35974000896. Its totient is φ = 5995666812.

The previous prime is 17987000429. The next prime is 17987000443. The reversal of 17987000442 is 24400078971.

It is a happy number.

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

17987000442 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 17987000394 and 17987000403.

It is not an unprimeable number, because it can be changed into a prime (17987000443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498916698 + ... + 1498916709.

It is an arithmetic number, because the mean of its divisors is an integer number (4496750112).

Almost surely, 2^17987000442 is an apocalyptic number.

17987000442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

17987000442 is a wasteful number, since it uses less digits than its factorization.

17987000442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997833412.

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 17987000442 in words is "seventeen billion, nine hundred eighty-seven million, four hundred forty-two", and thus it is an aban number.