3455556 has 48 divisors (see below), whose sum is σ = 9201024. Its totient is φ = 999936.

The previous prime is 3455533. The next prime is 3455561. The reversal of 3455556 is 6555543.

It is a plaindrome in base 10.

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, 2001 + ... + 3303.

It is an arithmetic number, because the mean of its divisors is an integer number (191688).

Almost surely, 2^3455556 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 3455556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4600512).

3455556 is an abundant number, since it is smaller than the sum of its proper divisors (5745468).

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

3455556 is a wasteful number, since it uses less digits than its factorization.

3455556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 1338 counting only the distinct ones).

The product of its digits is 45000, while the sum is 33.

The square root of 3455556 is about 1858.9125853574. The cubic root of 3455556 is about 151.1840511158.

The spelling of 3455556 in words is "three million, four hundred fifty-five thousand, five hundred fifty-six".