8238642 has 48 divisors (see below), whose sum is σ = 18234720. Its totient is φ = 2472192.

The previous prime is 8238619. The next prime is 8238683. The reversal of 8238642 is 2468328.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139609 + ... + 139667.

It is an arithmetic number, because the mean of its divisors is an integer number (379890).

Almost surely, 2^8238642 is an apocalyptic number.

8238642 is an abundant number, since it is smaller than the sum of its proper divisors (9996078).

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

8238642 is a wasteful number, since it uses less digits than its factorization.

8238642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 118 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 8238642 is about 2870.3034682765. The cubic root of 8238642 is about 201.9692303556.

It can be divided in two parts, 82386 and 42, that added together give a palindrome (82428).

The spelling of 8238642 in words is "eight million, two hundred thirty-eight thousand, six hundred forty-two".