4002421019 has 2 divisors, whose sum is σ = 4002421020. Its totient is φ = 4002421018.

The previous prime is 4002421013. The next prime is 4002421039. The reversal of 4002421019 is 9101242004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4002421019 - 2¹² = 4002416923 is a prime.

It is a super-2 number, since 2×4002421019² = 32038748026665996722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4002420985 and 4002421003.

It is not a weakly prime, because it can be changed into another prime (4002421013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001210509 + 2001210510.

It is an arithmetic number, because the mean of its divisors is an integer number (2001210510).

Almost surely, 2^4002421019 is an apocalyptic number.

4002421019 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002421019 is an equidigital number, since it uses as much as digits as its factorization.

4002421019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 4002421019 is about 63264.6901438709. The cubic root of 4002421019 is about 1587.7212480524.

The spelling of 4002421019 in words is "four billion, two million, four hundred twenty-one thousand, nineteen".