4221258938 has 8 divisors (see below), whose sum is σ = 6818956788. Its totient is φ = 1948273344.

The previous prime is 4221258889. The next prime is 4221258949. The reversal of 4221258938 is 8398521224.

It can be written as a sum of positive squares in 2 ways, for example, as 3105498529 + 1115760409 = 55727^2 + 33403^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81178031 + ... + 81178082.

Almost surely, 2^4221258938 is an apocalyptic number.

4221258938 is a deficient number, since it is larger than the sum of its proper divisors (2597697850).

4221258938 is a wasteful number, since it uses less digits than its factorization.

4221258938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162356128.

The product of its digits is 276480, while the sum is 44.

The square root of 4221258938 is about 64971.2162268800. The cubic root of 4221258938 is about 1616.1462706722.

The spelling of 4221258938 in words is "four billion, two hundred twenty-one million, two hundred fifty-eight thousand, nine hundred thirty-eight".