3222624 has 24 divisors (see below), whose sum is σ = 8459640. Its totient is φ = 1074176.

The previous prime is 3222617. The next prime is 3222629. The reversal of 3222624 is 4262223.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 3222624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3222629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16689 + ... + 16880.

It is an arithmetic number, because the mean of its divisors is an integer number (352485).

Almost surely, 2^3222624 is an apocalyptic number.

It is an amenable number.

3222624 is an abundant number, since it is smaller than the sum of its proper divisors (5237016).

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

3222624 is a wasteful number, since it uses less digits than its factorization.

3222624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33582 (or 33574 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 3222624 is about 1795.1668446136. The cubic root of 3222624 is about 147.7077260880.

Adding to 3222624 its reverse (4262223), we get a palindrome (7484847).

The spelling of 3222624 in words is "three million, two hundred twenty-two thousand, six hundred twenty-four".