4228392857 has 4 divisors (see below), whose sum is σ = 4553653860. Its totient is φ = 3903131856.

The previous prime is 4228392851. The next prime is 4228392877. The reversal of 4228392857 is 7582938224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1311960841 + 2916432016 = 36221^2 + 54004^2 .

It is not a de Polignac number, because 4228392857 - 2¹⁸ = 4228130713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4228392851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162630482 + ... + 162630507.

It is an arithmetic number, because the mean of its divisors is an integer number (1138413465).

Almost surely, 2^4228392857 is an apocalyptic number.

It is an amenable number.

4228392857 is a deficient number, since it is larger than the sum of its proper divisors (325261003).

4228392857 is a wasteful number, since it uses less digits than its factorization.

4228392857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325261002.

The product of its digits is 1935360, while the sum is 50.

The square root of 4228392857 is about 65026.0936624675. The cubic root of 4228392857 is about 1617.0561862470.

The spelling of 4228392857 in words is "four billion, two hundred twenty-eight million, three hundred ninety-two thousand, eight hundred fifty-seven".