4021442141 has 4 divisors (see below), whose sum is σ = 4087367484. Its totient is φ = 3955516800.

The previous prime is 4021442111. The next prime is 4021442143. The reversal of 4021442141 is 1412441204.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2135364100 + 1886078041 = 46210^2 + 43429^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021442141 - 2¹⁴ = 4021425757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021442143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32962580 + ... + 32962701.

It is an arithmetic number, because the mean of its divisors is an integer number (1021841871).

Almost surely, 2^4021442141 is an apocalyptic number.

It is an amenable number.

4021442141 is a deficient number, since it is larger than the sum of its proper divisors (65925343).

4021442141 is an equidigital number, since it uses as much as digits as its factorization.

4021442141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65925342.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 4021442141 is about 63414.8416461005. The cubic root of 4021442141 is about 1590.2324384947.

Adding to 4021442141 its reverse (1412441204), we get a palindrome (5433883345).

The spelling of 4021442141 in words is "four billion, twenty-one million, four hundred forty-two thousand, one hundred forty-one".