1242016422 has 16 divisors (see below), whose sum is σ = 2592034560. Its totient is φ = 396005192.

The previous prime is 1242016417. The next prime is 1242016471. The reversal of 1242016422 is 2246102421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1242016392 and 1242016401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4499922 + ... + 4500197.

It is an arithmetic number, because the mean of its divisors is an integer number (162002160).

Almost surely, 2^1242016422 is an apocalyptic number.

1242016422 is an abundant number, since it is smaller than the sum of its proper divisors (1350018138).

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

1242016422 is a wasteful number, since it uses less digits than its factorization.

1242016422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9000147.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1242016422 is about 35242.2533615545. The cubic root of 1242016422 is about 1074.9190988694.

Adding to 1242016422 its reverse (2246102421), we get a palindrome (3488118843).

The spelling of 1242016422 in words is "one billion, two hundred forty-two million, sixteen thousand, four hundred twenty-two".