8242538 has 4 divisors (see below), whose sum is σ = 12363810. Its totient is φ = 4121268.

The previous prime is 8242537. The next prime is 8242547. The reversal of 8242538 is 8352428.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8162449 + 80089 = 2857^2 + 283^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8242537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060633 + ... + 2060636.

Almost surely, 2^8242538 is an apocalyptic number.

8242538 is a deficient number, since it is larger than the sum of its proper divisors (4121272).

8242538 is a wasteful number, since it uses less digits than its factorization.

8242538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121271.

The product of its digits is 15360, while the sum is 32.

The square root of 8242538 is about 2870.9820619433. The cubic root of 8242538 is about 202.0010619818.

The spelling of 8242538 in words is "eight million, two hundred forty-two thousand, five hundred thirty-eight".