26222900 has 72 divisors (see below), whose sum is σ = 64162560. Its totient is φ = 9216000.

The previous prime is 26222881. The next prime is 26222909. The reversal of 26222900 is 922262.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26222909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33716 + ... + 34484.

Almost surely, 2^26222900 is an apocalyptic number.

26222900 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 26222900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32081280).

26222900 is an abundant number, since it is smaller than the sum of its proper divisors (37939660).

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

26222900 is a wasteful number, since it uses less digits than its factorization.

26222900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 26222900 is about 5120.8300108479. The cubic root of 26222900 is about 297.0937892262.

The spelling of 26222900 in words is "twenty-six million, two hundred twenty-two thousand, nine hundred".