22726000 has 80 divisors (see below), whose sum is σ = 60005088. Its totient is φ = 8256000.

The previous prime is 22725979. The next prime is 22726003. The reversal of 22726000 is 62722.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22726003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21484 + ... + 22516.

Almost surely, 2^22726000 is an apocalyptic number.

22726000 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 22726000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30002544).

22726000 is an abundant number, since it is smaller than the sum of its proper divisors (37279088).

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

22726000 is a wasteful number, since it uses less digits than its factorization.

22726000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1051 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 22726000 is about 4767.1794595966. The cubic root of 22726000 is about 283.2528798869.

Adding to 22726000 its reverse (62722), we get a palindrome (22788722).

Subtracting from 22726000 its reverse (62722), we obtain a triangular number (22663278 = T₆₇₃₂).

The spelling of 22726000 in words is "twenty-two million, seven hundred twenty-six thousand".