2447222 has 8 divisors (see below), whose sum is σ = 3740256. Its totient is φ = 1200472.

The previous prime is 2447209. The next prime is 2447239. The reversal of 2447222 is 2227442.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 11438 + ... + 11649.

It is an arithmetic number, because the mean of its divisors is an integer number (467532).

2^2447222 is an apocalyptic number.

2447222 is a deficient number, since it is larger than the sum of its proper divisors (1293034).

2447222 is a wasteful number, since it uses less digits than its factorization.

2447222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23142.

The product of its digits is 1792, while the sum is 23.

The square root of 2447222 is about 1564.3599330077. The cubic root of 2447222 is about 134.7590030505.

The spelling of 2447222 in words is "two million, four hundred forty-seven thousand, two hundred twenty-two".