22304020 has 24 divisors (see below), whose sum is σ = 48875904. Its totient is φ = 8533536.

The previous prime is 22303993. The next prime is 22304027. The reversal of 22304020 is 2040322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22304027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23784 + ... + 24703.

It is an arithmetic number, because the mean of its divisors is an integer number (2036496).

Almost surely, 2^22304020 is an apocalyptic number.

22304020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22304020 is an abundant number, since it is smaller than the sum of its proper divisors (26571884).

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

22304020 is a wasteful number, since it uses less digits than its factorization.

22304020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48519 (or 48517 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 22304020 is about 4722.7132032339. The cubic root of 22304020 is about 281.4887539715.

Adding to 22304020 its reverse (2040322), we get a palindrome (24344342).

The spelling of 22304020 in words is "twenty-two million, three hundred four thousand, twenty".