4028561952 has 96 divisors (see below), whose sum is σ = 10749412800. Its totient is φ = 1320883200.

The previous prime is 4028561917. The next prime is 4028561981. The reversal of 4028561952 is 2591658204.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×4028561952² = 32458622802204100608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1579174 + ... + 1581722.

It is an arithmetic number, because the mean of its divisors is an integer number (111973050).

Almost surely, 2^4028561952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4028561952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5374706400).

4028561952 is an abundant number, since it is smaller than the sum of its proper divisors (6720850848).

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

4028561952 is a wasteful number, since it uses less digits than its factorization.

4028561952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826 (or 2818 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 4028561952 is about 63470.9536087177. The cubic root of 4028561952 is about 1591.1703672908.

The spelling of 4028561952 in words is "four billion, twenty-eight million, five hundred sixty-one thousand, nine hundred fifty-two".