22723320 has 32 divisors (see below), whose sum is σ = 68170320. Its totient is φ = 6059520.

The previous prime is 22723313. The next prime is 22723321. The reversal of 22723320 is 2332722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22723321) 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, 94561 + ... + 94800.

Almost surely, 2^22723320 is an apocalyptic number.

22723320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22723320 is an abundant number, since it is smaller than the sum of its proper divisors (45447000).

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

22723320 is a wasteful number, since it uses less digits than its factorization.

22723320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189375 (or 189371 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 22723320 is about 4766.8983626673. The cubic root of 22723320 is about 283.2417450991.

The spelling of 22723320 in words is "twenty-two million, seven hundred twenty-three thousand, three hundred twenty".