38889252438 has 8 divisors (see below), whose sum is σ = 77778504888. Its totient is φ = 12963084144.

The previous prime is 38889252397. The next prime is 38889252461. The reversal of 38889252438 is 83425298883.

It is a happy number.

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

38889252438 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3240771031 + ... + 3240771042.

It is an arithmetic number, because the mean of its divisors is an integer number (9722313111).

Almost surely, 2^38889252438 is an apocalyptic number.

38889252438 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.

38889252438 is a wasteful number, since it uses less digits than its factorization.

38889252438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6481542078.

The product of its digits is 26542080, while the sum is 60.

It can be divided in two parts, 388892 and 52438, that added together give a triangular number (441330 = T₉₃₉).

The spelling of 38889252438 in words is "thirty-eight billion, eight hundred eighty-nine million, two hundred fifty-two thousand, four hundred thirty-eight".