38987874 has 24 divisors (see below), whose sum is σ = 85426380. Its totient is φ = 12849408.

The previous prime is 38987833. The next prime is 38987887. The reversal of 38987874 is 47878983.

It can be written as a sum of positive squares in 2 ways, for example, as 37124649 + 1863225 = 6093^2 + 1365^2 .

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38987874.

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 11 ways as a sum of consecutive naturals, for example, 10567 + ... + 13770.

Almost surely, 2^38987874 is an apocalyptic number.

38987874 is an abundant number, since it is smaller than the sum of its proper divisors (46438506).

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

38987874 is a wasteful number, since it uses less digits than its factorization.

38987874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24434 (or 24431 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 38987874 is about 6244.0270659247. The cubic root of 38987874 is about 339.0859937949.

The spelling of 38987874 in words is "thirty-eight million, nine hundred eighty-seven thousand, eight hundred seventy-four".