1423421242 has 8 divisors (see below), whose sum is σ = 2135333376. Its totient is φ = 711643452.

The previous prime is 1423421227. The next prime is 1423421243. The reversal of 1423421242 is 2421243241.

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

It is a super-2 number, since 2×1423421242² = 4052256064353645128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1423421243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628 + ... + 53359.

It is an arithmetic number, because the mean of its divisors is an integer number (266916672).

Almost surely, 2^1423421242 is an apocalyptic number.

1423421242 is a deficient number, since it is larger than the sum of its proper divisors (711912134).

1423421242 is a wasteful number, since it uses less digits than its factorization.

1423421242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67172.

The product of its digits is 3072, while the sum is 25.

The square root of 1423421242 is about 37728.2552207228. The cubic root of 1423421242 is about 1124.8928271897.

Adding to 1423421242 its reverse (2421243241), we get a palindrome (3844664483).

The spelling of 1423421242 in words is "one billion, four hundred twenty-three million, four hundred twenty-one thousand, two hundred forty-two".