4021431442 has 8 divisors (see below), whose sum is σ = 6893882496. Its totient is φ = 1723470612.

The previous prime is 4021431433. The next prime is 4021431467. The reversal of 4021431442 is 2441341204.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143622538 + ... + 143622565.

It is an arithmetic number, because the mean of its divisors is an integer number (861735312).

Almost surely, 2^4021431442 is an apocalyptic number.

4021431442 is a deficient number, since it is larger than the sum of its proper divisors (2872451054).

4021431442 is a wasteful number, since it uses less digits than its factorization.

4021431442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287245112.

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

The square root of 4021431442 is about 63414.7572888204. The cubic root of 4021431442 is about 1590.2310282285.

Adding to 4021431442 its reverse (2441341204), we get a palindrome (6462772646).

The spelling of 4021431442 in words is "four billion, twenty-one million, four hundred thirty-one thousand, four hundred forty-two".