4021440422 has 4 divisors (see below), whose sum is σ = 6032160636. Its totient is φ = 2010720210.

The previous prime is 4021440419. The next prime is 4021440431. The reversal of 4021440422 is 2240441204.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005360104 + ... + 1005360107.

It is an arithmetic number, because the mean of its divisors is an integer number (1508040159).

Almost surely, 2^4021440422 is an apocalyptic number.

4021440422 is a deficient number, since it is larger than the sum of its proper divisors (2010720214).

4021440422 is a wasteful number, since it uses less digits than its factorization.

4021440422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010720213.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 4021440422 is about 63414.8280924895. The cubic root of 4021440422 is about 1590.2322119085.

Adding to 4021440422 its reverse (2240441204), we get a palindrome (6261881626).

The spelling of 4021440422 in words is "four billion, twenty-one million, four hundred forty thousand, four hundred twenty-two".