4567990856 has 128 divisors (see below), whose sum is σ = 10390584960. Its totient is φ = 1855180800.

The previous prime is 4567990787. The next prime is 4567990859. The reversal of 4567990856 is 6580997654.

It is a super-2 number, since 2×4567990856² = 41733080920999225472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4567990795 and 4567990804.

It is not an unprimeable number, because it can be changed into a prime (4567990859) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4675040 + ... + 4676016.

It is an arithmetic number, because the mean of its divisors is an integer number (81176445).

Almost surely, 2^4567990856 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 4567990856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5195292480).

4567990856 is an abundant number, since it is smaller than the sum of its proper divisors (5822594104).

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

4567990856 is a wasteful number, since it uses less digits than its factorization.

4567990856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 59.

The square root of 4567990856 is about 67586.9133486654. The cubic root of 4567990856 is about 1659.2369425662.

The spelling of 4567990856 in words is "four billion, five hundred sixty-seven million, nine hundred ninety thousand, eight hundred fifty-six".