4239822 has 16 divisors (see below), whose sum is σ = 8502912. Its totient is φ = 1409400.

The previous prime is 4239821. The next prime is 4239847. The reversal of 4239822 is 2289324.

It is a d-powerful number, because it can be written as 4⁷ + 2 + 3¹³ + 9⁶ + 8 + 2⁹ + 2²¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 4239822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4239821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2197 + ... + 3647.

It is an arithmetic number, because the mean of its divisors is an integer number (531432).

Almost surely, 2^4239822 is an apocalyptic number.

4239822 is an abundant number, since it is smaller than the sum of its proper divisors (4263090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4239822 is a wasteful number, since it uses less digits than its factorization.

4239822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943.

The product of its digits is 6912, while the sum is 30.

The square root of 4239822 is about 2059.0828055229. The cubic root of 4239822 is about 161.8511817293.

The spelling of 4239822 in words is "four million, two hundred thirty-nine thousand, eight hundred twenty-two".