4028765380 has 12 divisors (see below), whose sum is σ = 8460407340. Its totient is φ = 1611506144.

The previous prime is 4028765371. The next prime is 4028765413. The reversal of 4028765380 is 835678204.

It can be written as a sum of positive squares in 2 ways, for example, as 2343334464 + 1685430916 = 48408^2 + 41054^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100719115 + ... + 100719154.

It is an arithmetic number, because the mean of its divisors is an integer number (705033945).

Almost surely, 2^4028765380 is an apocalyptic number.

It is an amenable number.

4028765380 is an abundant number, since it is smaller than the sum of its proper divisors (4431641960).

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

4028765380 is a wasteful number, since it uses less digits than its factorization.

4028765380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201438278 (or 201438276 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 4028765380 is about 63472.5561167974. The cubic root of 4028765380 is about 1591.1971496481.

The spelling of 4028765380 in words is "four billion, twenty-eight million, seven hundred sixty-five thousand, three hundred eighty".