1423220042 has 32 divisors (see below), whose sum is σ = 2386065600. Its totient is φ = 632717568.

The previous prime is 1423220011. The next prime is 1423220047. The reversal of 1423220042 is 2400223241.

It is a junction number, because it is equal to n+sod(n) for n = 1423219996 and 1423220023.

It is not an unprimeable number, because it can be changed into a prime (1423220047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241928 + ... + 247740.

It is an arithmetic number, because the mean of its divisors is an integer number (74564550).

Almost surely, 2^1423220042 is an apocalyptic number.

1423220042 is a deficient number, since it is larger than the sum of its proper divisors (962845558).

1423220042 is a wasteful number, since it uses less digits than its factorization.

1423220042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6230.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1423220042 is about 37725.5886899065. The cubic root of 1423220042 is about 1124.8398236480.

Adding to 1423220042 its reverse (2400223241), we get a palindrome (3823443283).

The spelling of 1423220042 in words is "one billion, four hundred twenty-three million, two hundred twenty thousand, forty-two".