22232704 has 64 divisors (see below), whose sum is σ = 49351680. Its totient is φ = 9907200.

The previous prime is 22232689. The next prime is 22232729. The reversal of 22232704 is 40723222.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51369 + ... + 51799.

It is an arithmetic number, because the mean of its divisors is an integer number (771120).

Almost surely, 2^22232704 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 22232704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24675840).

22232704 is an abundant number, since it is smaller than the sum of its proper divisors (27118976).

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

22232704 is a wasteful number, since it uses less digits than its factorization.

22232704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 22232704 is about 4715.1568372643. The cubic root of 22232704 is about 281.1884181880.

Adding to 22232704 its reverse (40723222), we get a palindrome (62955926).

The spelling of 22232704 in words is "twenty-two million, two hundred thirty-two thousand, seven hundred four".