4221524238 has 8 divisors (see below), whose sum is σ = 8443048488. Its totient is φ = 1407174744.

The previous prime is 4221524207. The next prime is 4221524243. The reversal of 4221524238 is 8324251224.

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

4221524238 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4221524199 and 4221524208.

It is a congruent number.

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, 351793681 + ... + 351793692.

It is an arithmetic number, because the mean of its divisors is an integer number (1055381061).

Almost surely, 2^4221524238 is an apocalyptic number.

4221524238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221524238 is a wasteful number, since it uses less digits than its factorization.

4221524238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703587378.

The product of its digits is 30720, while the sum is 33.

The square root of 4221524238 is about 64973.2578681414. The cubic root of 4221524238 is about 1616.1801274457.

The spelling of 4221524238 in words is "four billion, two hundred twenty-one million, five hundred twenty-four thousand, two hundred thirty-eight".