8142224 has 20 divisors (see below), whose sum is σ = 15903744.
Its totient is φ = 4038048.
The previous prime is 8142221. The next prime is 8142229. The reversal of 8142224 is 4222418.
It is a happy number.
It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.
It is a nude number because it is divisible by every one of its digits.
It is a self number, because there is not a number n which added to its sum of digits gives 8142224.
It is not an unprimeable number, because it can be changed into a prime (8142221) 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, 29 + ... + 4035.
Almost surely, 28142224 is an apocalyptic number.
It is an amenable number.
8142224 is a deficient number, since it is larger than the sum of its proper divisors (7761520).
8142224 is a wasteful number, since it uses less digits than its factorization.
8142224 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4142 (or 4136 counting only the distinct ones).
The product of its digits is 1024, while the sum is 23.
The square root of 8142224 is about 2853.4582527172.
The cubic root of 8142224 is about 201.1782450619.
The spelling of 8142224 in words is "eight million, one hundred forty-two thousand, two hundred twenty-four".