38989889 has 8 divisors (see below), whose sum is σ = 39456768. Its totient is φ = 38525760.

The previous prime is 38989883. The next prime is 38989901. The reversal of 38989889 is 98898983.

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

It is a cyclic number.

It is not a de Polignac number, because 38989889 - 2²⁰ = 37941313 is a prime.

It is a super-2 number, since 2×38989889² = 3040422888464642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38989883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42344 + ... + 43254.

It is an arithmetic number, because the mean of its divisors is an integer number (4932096).

Almost surely, 2^38989889 is an apocalyptic number.

It is an amenable number.

38989889 is a deficient number, since it is larger than the sum of its proper divisors (466879).

38989889 is a wasteful number, since it uses less digits than its factorization.

38989889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375.

The product of its digits is 8957952, while the sum is 62.

The square root of 38989889 is about 6244.1884180412. The cubic root of 38989889 is about 339.0918353249.

The spelling of 38989889 in words is "thirty-eight million, nine hundred eighty-nine thousand, eight hundred eighty-nine".