4223526 has 12 divisors (see below), whose sum is σ = 8457132. Its totient is φ = 1406164.

The previous prime is 4223521. The next prime is 4223537. The reversal of 4223526 is 6253224.

It is a d-powerful number, because it can be written as 4 + 2¹² + 2¹³ + 3² + 5⁶ + 2²² + 6⁴ .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4223496 and 4223505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4615 + ... + 5453.

It is an arithmetic number, because the mean of its divisors is an integer number (704761).

Almost surely, 2^4223526 is an apocalyptic number.

4223526 is an abundant number, since it is smaller than the sum of its proper divisors (4233606).

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

4223526 is an frugal number, since it uses more digits than its factorization.

4223526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683 (or 844 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 4223526 is about 2055.1218941951. The cubic root of 4223526 is about 161.6435540464.

Multiplying 4223526 by its sum of digits (24), we get a square (101364624 = 10068²).

The spelling of 4223526 in words is "four million, two hundred twenty-three thousand, five hundred twenty-six".