8124442 has 4 divisors (see below), whose sum is σ = 12186666. Its totient is φ = 4062220.

The previous prime is 8124433. The next prime is 8124443. The reversal of 8124442 is 2444218.

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., 6195121 + 1929321 = 2489^2 + 1389^2 .

It is a super-2 number, since 2×8124442² = 132013115622728, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8124443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2031109 + ... + 2031112.

Almost surely, 2^8124442 is an apocalyptic number.

8124442 is a deficient number, since it is larger than the sum of its proper divisors (4062224).

8124442 is a wasteful number, since it uses less digits than its factorization.

8124442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4062223.

The product of its digits is 2048, while the sum is 25.

The square root of 8124442 is about 2850.3406813923. The cubic root of 8124442 is about 201.0316856395.

The spelling of 8124442 in words is "eight million, one hundred twenty-four thousand, four hundred forty-two".