8138242 has 8 divisors (see below), whose sum is σ = 13951296. Its totient is φ = 3487812.

The previous prime is 8138239. The next prime is 8138243. The reversal of 8138242 is 2428318.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8138242.

It is not an unprimeable number, because it can be changed into a prime (8138243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290638 + ... + 290665.

It is an arithmetic number, because the mean of its divisors is an integer number (1743912).

Almost surely, 2^8138242 is an apocalyptic number.

8138242 is a deficient number, since it is larger than the sum of its proper divisors (5813054).

8138242 is a wasteful number, since it uses less digits than its factorization.

8138242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581312.

The product of its digits is 3072, while the sum is 28.

The square root of 8138242 is about 2852.7604175605. The cubic root of 8138242 is about 201.1454439337.

The spelling of 8138242 in words is "eight million, one hundred thirty-eight thousand, two hundred forty-two".