4222742 has 8 divisors (see below), whose sum is σ = 6428856. Its totient is φ = 2079792.

The previous prime is 4222739. The next prime is 4222747. The reversal of 4222742 is 2472224.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4222747) 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, 15623 + ... + 15890.

It is an arithmetic number, because the mean of its divisors is an integer number (803607).

Almost surely, 2^4222742 is an apocalyptic number.

4222742 is a deficient number, since it is larger than the sum of its proper divisors (2206114).

4222742 is a wasteful number, since it uses less digits than its factorization.

4222742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31582.

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

The square root of 4222742 is about 2054.9311423987. The cubic root of 4222742 is about 161.6335516307.

Adding to 4222742 its reverse (2472224), we get a palindrome (6694966).

The spelling of 4222742 in words is "four million, two hundred twenty-two thousand, seven hundred forty-two".