38420889 has 8 divisors (see below), whose sum is σ = 55168512. Its totient is φ = 23643600.

The previous prime is 38420857. The next prime is 38420909. The reversal of 38420889 is 98802483.

It is a happy number.

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

It is not a de Polignac number, because 38420889 - 2⁵ = 38420857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38420889.

It is not an unprimeable number, because it can be changed into a prime (38420819) 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, 492537 + ... + 492614.

It is an arithmetic number, because the mean of its divisors is an integer number (6896064).

Almost surely, 2^38420889 is an apocalyptic number.

38420889 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

38420889 is a deficient number, since it is larger than the sum of its proper divisors (16747623).

38420889 is a wasteful number, since it uses less digits than its factorization.

38420889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985167.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 38420889 is about 6198.4585987163. The cubic root of 38420889 is about 337.4342302568.

The spelling of 38420889 in words is "thirty-eight million, four hundred twenty thousand, eight hundred eighty-nine".