2854566 has 48 divisors (see below), whose sum is σ = 7272720. Its totient is φ = 797760.

The previous prime is 2854561. The next prime is 2854567. The reversal of 2854566 is 6654582.

2854566 = T₁₂₄ + T₁₂₅ + ... + T₂₆₆.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2854566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2854561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2020 + ... + 3128.

It is an arithmetic number, because the mean of its divisors is an integer number (151515).

2^2854566 is an apocalyptic number.

2854566 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2854566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3636360).

2854566 is an abundant number, since it is smaller than the sum of its proper divisors (4418154).

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

2854566 is a wasteful number, since it uses less digits than its factorization.

2854566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1138 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 2854566 is about 1689.5460928900. The cubic root of 2854566 is about 141.8556689945.

It can be divided in two parts, 285 and 4566, that added together give a triangular number (4851 = T₉₈).

The spelling of 2854566 in words is "two million, eight hundred fifty-four thousand, five hundred sixty-six".