3815222 has 4 divisors (see below), whose sum is σ = 5722836. Its totient is φ = 1907610.

The previous prime is 3815221. The next prime is 3815243. The reversal of 3815222 is 2225183.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3815221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953804 + ... + 953807.

It is an arithmetic number, because the mean of its divisors is an integer number (1430709).

Almost surely, 2^3815222 is an apocalyptic number.

3815222 is a deficient number, since it is larger than the sum of its proper divisors (1907614).

3815222 is a wasteful number, since it uses less digits than its factorization.

3815222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907613.

The product of its digits is 960, while the sum is 23.

The square root of 3815222 is about 1953.2593273808. The cubic root of 3815222 is about 156.2571640449.

The spelling of 3815222 in words is "three million, eight hundred fifteen thousand, two hundred twenty-two".