4028778622 has 16 divisors (see below), whose sum is σ = 6604618752. Its totient is φ = 1827909720.

The previous prime is 4028778581. The next prime is 4028778653. The reversal of 4028778622 is 2268778204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155358 + ... + 179425.

It is an arithmetic number, because the mean of its divisors is an integer number (412788672).

Almost surely, 2^4028778622 is an apocalyptic number.

4028778622 is a deficient number, since it is larger than the sum of its proper divisors (2575840130).

4028778622 is a wasteful number, since it uses less digits than its factorization.

4028778622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335343.

The product of its (nonzero) digits is 602112, while the sum is 46.

The square root of 4028778622 is about 63472.6604295109. The cubic root of 4028778622 is about 1591.1988929953.

The spelling of 4028778622 in words is "four billion, twenty-eight million, seven hundred seventy-eight thousand, six hundred twenty-two".