22023700 has 36 divisors (see below), whose sum is σ = 48239100. Its totient is φ = 8727040.

The previous prime is 22023691. The next prime is 22023713. The reversal of 22023700 is 732022.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1971216 + 20052484 = 1404^2 + 4478^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10326 + ... + 12274.

It is an arithmetic number, because the mean of its divisors is an integer number (1339975).

Almost surely, 2^22023700 is an apocalyptic number.

22023700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22023700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24119550).

22023700 is an abundant number, since it is smaller than the sum of its proper divisors (26215400).

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

22023700 is a wasteful number, since it uses less digits than its factorization.

22023700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076 (or 2069 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 22023700 is about 4692.9415082654. The cubic root of 22023700 is about 280.3045156409.

Adding to 22023700 its reverse (732022), we get a palindrome (22755722).

The spelling of 22023700 in words is "twenty-two million, twenty-three thousand, seven hundred".