4052040421 has 8 divisors (see below), whose sum is σ = 4760439264. Its totient is φ = 3400313520.

The previous prime is 4052040383. The next prime is 4052040467. The reversal of 4052040421 is 1240402504.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4052040421 - 2⁹ = 4052039909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4052040392 and 4052040401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4052040481) 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, 14167831 + ... + 14168116.

It is an arithmetic number, because the mean of its divisors is an integer number (595054908).

Almost surely, 2^4052040421 is an apocalyptic number.

It is an amenable number.

4052040421 is a deficient number, since it is larger than the sum of its proper divisors (708398843).

4052040421 is a wasteful number, since it uses less digits than its factorization.

4052040421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28335971.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 4052040421 is about 63655.6393495502. The cubic root of 4052040421 is about 1594.2554965927.

Adding to 4052040421 its reverse (1240402504), we get a palindrome (5292442925).

The spelling of 4052040421 in words is "four billion, fifty-two million, forty thousand, four hundred twenty-one".