4392457216 has 66 divisors (see below), whose sum is σ = 10214313018. Its totient is φ = 1882460160.

The previous prime is 4392457187. The next prime is 4392457249. The reversal of 4392457216 is 6127542934.

It can be written as a sum of positive squares in only one way, i.e., 3657830400 + 734626816 = 60480^2 + 27104^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6406 + ... + 93946.

Almost surely, 2^4392457216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4392457216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5107156509).

4392457216 is an abundant number, since it is smaller than the sum of its proper divisors (5821855802).

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

4392457216 is an equidigital number, since it uses as much as digits as its factorization.

4392457216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87575 (or 87550 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 4392457216 is about 66275.6155459910. The cubic root of 4392457216 is about 1637.7056475481.

The spelling of 4392457216 in words is "four billion, three hundred ninety-two million, four hundred fifty-seven thousand, two hundred sixteen".