4240432221 has 8 divisors (see below), whose sum is σ = 5654747904. Its totient is φ = 2826535680.

The previous prime is 4240432201. The next prime is 4240432241. The reversal of 4240432221 is 1222340424.

It is an interprime number because it is at equal distance from previous prime (4240432201) and next prime (4240432241).

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

It is not a de Polignac number, because 4240432221 - 2⁹ = 4240431709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4240432191 and 4240432200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4240432201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80365 + ... + 122226.

It is an arithmetic number, because the mean of its divisors is an integer number (706843488).

Almost surely, 2^4240432221 is an apocalyptic number.

It is an amenable number.

4240432221 is a deficient number, since it is larger than the sum of its proper divisors (1414315683).

4240432221 is a wasteful number, since it uses less digits than its factorization.

4240432221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209571.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 4240432221 is about 65118.6011904433. The cubic root of 4240432221 is about 1618.5894622605.

Adding to 4240432221 its reverse (1222340424), we get a palindrome (5462772645).

The spelling of 4240432221 in words is "four billion, two hundred forty million, four hundred thirty-two thousand, two hundred twenty-one".