4019221842 has 16 divisors (see below), whose sum is σ = 8039272032. Its totient is φ = 1339602560.

The previous prime is 4019221799. The next prime is 4019221849. The reversal of 4019221842 is 2481229104.

It is not an unprimeable number, because it can be changed into a prime (4019221849) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 41413 + ... + 98759.

It is an arithmetic number, because the mean of its divisors is an integer number (502454502).

Almost surely, 2^4019221842 is an apocalyptic number.

4019221842 is an abundant number, since it is smaller than the sum of its proper divisors (4020050190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4019221842 is a wasteful number, since it uses less digits than its factorization.

4019221842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69033.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 4019221842 is about 63397.3330827094. Note that the first 3 decimals coincide. The cubic root of 4019221842 is about 1589.9397208270.

The spelling of 4019221842 in words is "four billion, nineteen million, two hundred twenty-one thousand, eight hundred forty-two".