1234221842 has 16 divisors (see below), whose sum is σ = 2116964160. Its totient is φ = 528663408.

The previous prime is 1234221841. The next prime is 1234221847. The reversal of 1234221842 is 2481224321.

It is not an unprimeable number, because it can be changed into a prime (1234221841) by changing a digit.

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, 3584 + ... + 49812.

It is an arithmetic number, because the mean of its divisors is an integer number (132310260).

Almost surely, 2^1234221842 is an apocalyptic number.

1234221842 is a deficient number, since it is larger than the sum of its proper divisors (882742318).

1234221842 is a wasteful number, since it uses less digits than its factorization.

1234221842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48145.

The product of its digits is 6144, while the sum is 29.

The square root of 1234221842 is about 35131.4935919326. The cubic root of 1234221842 is about 1072.6657385729.

The spelling of 1234221842 in words is "one billion, two hundred thirty-four million, two hundred twenty-one thousand, eight hundred forty-two".