4236042021 has 8 divisors (see below), whose sum is σ = 5651340960. Its totient is φ = 2822385552.

The previous prime is 4236042017. The next prime is 4236042037. The reversal of 4236042021 is 1202406324.

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

It is not a de Polignac number, because 4236042021 - 2² = 4236042017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4236041982 and 4236042000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4236042071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404586 + ... + 414923.

It is an arithmetic number, because the mean of its divisors is an integer number (706417620).

Almost surely, 2^4236042021 is an apocalyptic number.

It is an amenable number.

4236042021 is a deficient number, since it is larger than the sum of its proper divisors (1415298939).

4236042021 is a wasteful number, since it uses less digits than its factorization.

4236042021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821235.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4236042021 is about 65084.8831987889. The cubic root of 4236042021 is about 1618.0306839096.

Adding to 4236042021 its reverse (1202406324), we get a palindrome (5438448345).

The spelling of 4236042021 in words is "four billion, two hundred thirty-six million, forty-two thousand, twenty-one".