4028257722 has 8 divisors (see below), whose sum is σ = 8056515456. Its totient is φ = 1342752572.

The previous prime is 4028257711. The next prime is 4028257777. The reversal of 4028257722 is 2277528204.

It is a happy number.

4028257722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

4028257722 is an admirable 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, 335688138 + ... + 335688149.

It is an arithmetic number, because the mean of its divisors is an integer number (1007064432).

Almost surely, 2^4028257722 is an apocalyptic number.

4028257722 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.

4028257722 is a wasteful number, since it uses less digits than its factorization.

4028257722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671376292.

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 4028257722 is about 63468.5569553933. The cubic root of 4028257722 is about 1591.1303121419.

The spelling of 4028257722 in words is "four billion, twenty-eight million, two hundred fifty-seven thousand, seven hundred twenty-two".