1242403022 has 16 divisors (see below), whose sum is σ = 2139389952. Its totient is φ = 530069400.

The previous prime is 1242403009. The next prime is 1242403049. The reversal of 1242403022 is 2203042421.

It is a junction number, because it is equal to n+sod(n) for n = 1242402985 and 1242403003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195854 + ... + 202097.

It is an arithmetic number, because the mean of its divisors is an integer number (133711872).

Almost surely, 2^1242403022 is an apocalyptic number.

1242403022 is a deficient number, since it is larger than the sum of its proper divisors (896986930).

1242403022 is a wasteful number, since it uses less digits than its factorization.

1242403022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398183.

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

The square root of 1242403022 is about 35247.7378281217. The cubic root of 1242403022 is about 1075.0306166149.

Adding to 1242403022 its reverse (2203042421), we get a palindrome (3445445443).

The spelling of 1242403022 in words is "one billion, two hundred forty-two million, four hundred three thousand, twenty-two".