3556880 has 40 divisors (see below), whose sum is σ = 8349912. Its totient is φ = 1409024.

The previous prime is 3556877. The next prime is 3556897. The reversal of 3556880 is 886553.

It can be written as a sum of positive squares in 4 ways, for example, as 2155024 + 1401856 = 1468^2 + 1184^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 3556880.

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, 13712 + ... + 13968.

Almost surely, 2^3556880 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 3556880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4174956).

3556880 is an abundant number, since it is smaller than the sum of its proper divisors (4793032).

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

3556880 is a wasteful number, since it uses less digits than its factorization.

3556880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 3556880 is about 1885.9692468330. The cubic root of 3556880 is about 152.6475147014.

The spelling of 3556880 in words is "three million, five hundred fifty-six thousand, eight hundred eighty".