38400089 has 16 divisors (see below), whose sum is σ = 48894720. Its totient is φ = 29332800.

The previous prime is 38400077. The next prime is 38400107. The reversal of 38400089 is 98000483.

It is not a de Polignac number, because 38400089 - 2⁴ = 38400073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38400389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4637 + ... + 9914.

It is an arithmetic number, because the mean of its divisors is an integer number (3055920).

Almost surely, 2^38400089 is an apocalyptic number.

It is an amenable number.

38400089 is a deficient number, since it is larger than the sum of its proper divisors (10494631).

38400089 is a wasteful number, since it uses less digits than its factorization.

38400089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14600.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 38400089 is about 6196.7805350843. The cubic root of 38400089 is about 337.3733267646.

The spelling of 38400089 in words is "thirty-eight million, four hundred thousand, eighty-nine".