83438238 has 32 divisors (see below), whose sum is σ = 181149696. Its totient is φ = 25468128.

The previous prime is 83438237. The next prime is 83438263. The reversal of 83438238 is 83283438.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 83438196 and 83438205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83438231) 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, 5695 + ... + 14117.

It is an arithmetic number, because the mean of its divisors is an integer number (5660928).

Almost surely, 2^83438238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83438238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90574848).

83438238 is an abundant number, since it is smaller than the sum of its proper divisors (97711458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83438238 is a wasteful number, since it uses less digits than its factorization.

83438238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8568.

The product of its digits is 110592, while the sum is 39.

The square root of 83438238 is about 9134.4533498179. The cubic root of 83438238 is about 436.9734408469.

The spelling of 83438238 in words is "eighty-three million, four hundred thirty-eight thousand, two hundred thirty-eight".