4202440321 has 4 divisors (see below), whose sum is σ = 4338002944. Its totient is φ = 4066877700.

The previous prime is 4202440309. The next prime is 4202440327. The reversal of 4202440321 is 1230442024.

It is a happy number.

4202440321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4202440321 - 2⁵ = 4202440289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4202440292 and 4202440301.

It is not an unprimeable number, because it can be changed into a prime (4202440327) 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, 67781265 + ... + 67781326.

It is an arithmetic number, because the mean of its divisors is an integer number (1084500736).

Almost surely, 2^4202440321 is an apocalyptic number.

It is an amenable number.

4202440321 is a deficient number, since it is larger than the sum of its proper divisors (135562623).

4202440321 is a wasteful number, since it uses less digits than its factorization.

4202440321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135562622.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4202440321 is about 64826.2317353091. The cubic root of 4202440321 is about 1613.7410683654.

Adding to 4202440321 its reverse (1230442024), we get a palindrome (5432882345).

The spelling of 4202440321 in words is "four billion, two hundred two million, four hundred forty thousand, three hundred twenty-one".