4221431042 has 8 divisors (see below), whose sum is σ = 6334124556. Its totient is φ = 2110056192.

The previous prime is 4221430957. The next prime is 4221431051. The reversal of 4221431042 is 2401341224.

It can be written as a sum of positive squares in 2 ways, for example, as 3046929601 + 1174501441 = 55199^2 + 34271^2 .

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

It is a super-2 number, since 2×4221431042² = 35640960084722411528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4221430999 and 4221431017.

It is an unprimeable number.

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, 321623 + ... + 334490.

Almost surely, 2^4221431042 is an apocalyptic number.

4221431042 is a deficient number, since it is larger than the sum of its proper divisors (2112693514).

4221431042 is a wasteful number, since it uses less digits than its factorization.

4221431042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659332.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 4221431042 is about 64972.5406768121. The cubic root of 4221431042 is about 1616.1682342192.

Adding to 4221431042 its reverse (2401341224), we get a palindrome (6622772266).

The spelling of 4221431042 in words is "four billion, two hundred twenty-one million, four hundred thirty-one thousand, forty-two".