26122900 has 18 divisors (see below), whose sum is σ = 56686910. Its totient is φ = 10449120.

The previous prime is 26122883. The next prime is 26122907. The reversal of 26122900 is 922162.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4276624 + 21846276 = 2068^2 + 4674^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26122907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130515 + ... + 130714.

Almost surely, 2^26122900 is an apocalyptic number.

26122900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26122900 is an abundant number, since it is smaller than the sum of its proper divisors (30564010).

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

26122900 is a wasteful number, since it uses less digits than its factorization.

26122900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261243 (or 261236 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 26122900 is about 5111.0566422218. The cubic root of 26122900 is about 296.7156563180.

The spelling of 26122900 in words is "twenty-six million, one hundred twenty-two thousand, nine hundred".