22309680 has 40 divisors (see below), whose sum is σ = 69160752. Its totient is φ = 5949184.

The previous prime is 22309673. The next prime is 22309681. The reversal of 22309680 is 8690322.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×22309680³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (22309681) 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 7 ways as a sum of consecutive naturals, for example, 46239 + ... + 46718.

Almost surely, 2^22309680 is an apocalyptic number.

22309680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22309680 is an abundant number, since it is smaller than the sum of its proper divisors (46851072).

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

22309680 is a wasteful number, since it uses less digits than its factorization.

22309680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92973 (or 92967 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 22309680 is about 4723.3123970366. The cubic root of 22309680 is about 281.5125627079.

The spelling of 22309680 in words is "twenty-two million, three hundred nine thousand, six hundred eighty".