38228389 has 8 divisors (see below), whose sum is σ = 38878560. Its totient is φ = 37582896.

The previous prime is 38228383. The next prime is 38228417. The reversal of 38228389 is 98382283.

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 38228389 - 2³ = 38228381 is a prime.

It is a super-2 number, since 2×38228389² = 2922819451070642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38228381) 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, 17827 + ... + 19855.

It is an arithmetic number, because the mean of its divisors is an integer number (4859820).

Almost surely, 2^38228389 is an apocalyptic number.

It is an amenable number.

38228389 is a deficient number, since it is larger than the sum of its proper divisors (650171).

38228389 is a wasteful number, since it uses less digits than its factorization.

38228389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339.

The product of its digits is 165888, while the sum is 43.

The square root of 38228389 is about 6182.9110457777. The cubic root of 38228389 is about 336.8697380664.

The spelling of 38228389 in words is "thirty-eight million, two hundred twenty-eight thousand, three hundred eighty-nine".