4028885280 has 144 divisors (see below), whose sum is σ = 15712691904. Its totient is φ = 920885760.

The previous prime is 4028885251. The next prime is 4028885293. The reversal of 4028885280 is 825888204.

4028885280 is a `hidden beast` number, since 40 + 2 + 8 + 88 + 528 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189766 + ... + 209925.

It is an arithmetic number, because the mean of its divisors is an integer number (109115916).

Almost surely, 2^4028885280 is an apocalyptic number.

4028885280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4028885280 is an abundant number, since it is smaller than the sum of its proper divisors (11683806624).

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

4028885280 is a wasteful number, since it uses less digits than its factorization.

4028885280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399719 (or 399708 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 45.

The square root of 4028885280 is about 63473.5006124603. The cubic root of 4028885280 is about 1591.2129346863.

The spelling of 4028885280 in words is "four billion, twenty-eight million, eight hundred eighty-five thousand, two hundred eighty".