4213566 has 64 divisors (see below), whose sum is σ = 10920960. Its totient is φ = 1179360.

The previous prime is 4213543. The next prime is 4213567. The reversal of 4213566 is 6653124.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (4320) is a multiple of the sum of its prime divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4213567) 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, 26760 + ... + 26916.

It is an arithmetic number, because the mean of its divisors is an integer number (170640).

Almost surely, 2^4213566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4213566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5460480).

4213566 is an abundant number, since it is smaller than the sum of its proper divisors (6707394).

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

4213566 is a wasteful number, since it uses less digits than its factorization.

4213566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 240 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 4213566 is about 2052.6972499616. The cubic root of 4213566 is about 161.5163903911.

The spelling of 4213566 in words is "four million, two hundred thirteen thousand, five hundred sixty-six".