22809304 has 48 divisors (see below), whose sum is σ = 51382080. Its totient is φ = 9455040.

The previous prime is 22809301. The next prime is 22809331. The reversal of 22809304 is 40390822.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22809301) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 11214 + ... + 13090.

It is an arithmetic number, because the mean of its divisors is an integer number (1070460).

Almost surely, 2^22809304 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 22809304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25691040).

22809304 is an abundant number, since it is smaller than the sum of its proper divisors (28572776).

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

22809304 is a wasteful number, since it uses less digits than its factorization.

22809304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928 (or 1917 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22809304 is about 4775.9087093453. The cubic root of 22809304 is about 283.5985533495.

The spelling of 22809304 in words is "twenty-two million, eight hundred nine thousand, three hundred four".