4378222 has 8 divisors (see below), whose sum is σ = 6615000. Its totient is φ = 2173224.

The previous prime is 4378219. The next prime is 4378229. The reversal of 4378222 is 2228734.

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

It is a d-powerful number, because it can be written as 4² + 3¹¹ + 7⁴ + 8⁴ + 2 + 2⁸ + 2²² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378229) 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, 7597 + ... + 8152.

It is an arithmetic number, because the mean of its divisors is an integer number (826875).

Almost surely, 2^4378222 is an apocalyptic number.

4378222 is a deficient number, since it is larger than the sum of its proper divisors (2236778).

4378222 is a wasteful number, since it uses less digits than its factorization.

4378222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15890.

The product of its digits is 5376, while the sum is 28.

The square root of 4378222 is about 2092.4201298974. The cubic root of 4378222 is about 163.5934556597.

The spelling of 4378222 in words is "four million, three hundred seventy-eight thousand, two hundred twenty-two".