4234724221 has 32 divisors (see below), whose sum is σ = 5339271168. Its totient is φ = 3269410560.

The previous prime is 4234724171. The next prime is 4234724227. The reversal of 4234724221 is 1224274324.

It is not a de Polignac number, because 4234724221 - 2¹⁵ = 4234691453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4234724227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 918895 + ... + 923491.

It is an arithmetic number, because the mean of its divisors is an integer number (166852224).

Almost surely, 2^4234724221 is an apocalyptic number.

It is an amenable number.

4234724221 is a deficient number, since it is larger than the sum of its proper divisors (1104546947).

4234724221 is a wasteful number, since it uses less digits than its factorization.

4234724221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861.

The product of its digits is 21504, while the sum is 31.

The square root of 4234724221 is about 65074.7587087344. The cubic root of 4234724221 is about 1617.8628808857.

Adding to 4234724221 its reverse (1224274324), we get a palindrome (5458998545).

The spelling of 4234724221 in words is "four billion, two hundred thirty-four million, seven hundred twenty-four thousand, two hundred twenty-one".