4200040321 has 4 divisors (see below), whose sum is σ = 4200362944. Its totient is φ = 4199717700.

The previous prime is 4200040303. The next prime is 4200040343. The reversal of 4200040321 is 1230400024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4200040321 - 2⁵ = 4200040289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4200040295 and 4200040304.

It is not an unprimeable number, because it can be changed into a prime (4200040121) 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 3 ways as a sum of consecutive naturals, for example, 140925 + ... + 168106.

It is an arithmetic number, because the mean of its divisors is an integer number (1050090736).

Almost surely, 2^4200040321 is an apocalyptic number.

It is an amenable number.

4200040321 is a deficient number, since it is larger than the sum of its proper divisors (322623).

4200040321 is a wasteful number, since it uses less digits than its factorization.

4200040321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322622.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4200040321 is about 64807.7180666007. The cubic root of 4200040321 is about 1613.4338091077.

Adding to 4200040321 its reverse (1230400024), we get a palindrome (5430440345).

The spelling of 4200040321 in words is "four billion, two hundred million, forty thousand, three hundred twenty-one".