4240004221 has 8 divisors (see below), whose sum is σ = 4490112960. Its totient is φ = 3989972928.

The previous prime is 4240004203. The next prime is 4240004227. The reversal of 4240004221 is 1224000424.

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 4240004221 - 2²³ = 4231615613 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 (4240004227) 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, 123570 + ... + 154108.

It is an arithmetic number, because the mean of its divisors is an integer number (561264120).

Almost surely, 2^4240004221 is an apocalyptic number.

It is an amenable number.

4240004221 is a deficient number, since it is larger than the sum of its proper divisors (250108739).

4240004221 is a wasteful number, since it uses less digits than its factorization.

4240004221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38723.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 4240004221 is about 65115.3147961369. The cubic root of 4240004221 is about 1618.5350040070.

Adding to 4240004221 its reverse (1224000424), we get a palindrome (5464004645).

The spelling of 4240004221 in words is "four billion, two hundred forty million, four thousand, two hundred twenty-one".