1422742 has 4 divisors (see below), whose sum is σ = 2134116. Its totient is φ = 711370.

The previous prime is 1422727. The next prime is 1422749. The reversal of 1422742 is 2472241.

It is a happy number.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355684 + ... + 355687.

It is an arithmetic number, because the mean of its divisors is an integer number (533529).

2^1422742 is an apocalyptic number.

1422742 is a deficient number, since it is larger than the sum of its proper divisors (711374).

1422742 is an equidigital number, since it uses as much as digits as its factorization.

1422742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711373.

The product of its digits is 896, while the sum is 22.

The square root of 1422742 is about 1192.7874915508. The cubic root of 1422742 is about 112.4713869619.

Adding to 1422742 its reverse (2472241), we get a palindrome (3894983).

The spelling of 1422742 in words is "one million, four hundred twenty-two thousand, seven hundred forty-two".