26327980 has 48 divisors (see below), whose sum is σ = 63927360. Its totient is φ = 8921088.

The previous prime is 26327971. The next prime is 26327981. The reversal of 26327980 is 8972362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26327981) 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, 11404 + ... + 13516.

It is an arithmetic number, because the mean of its divisors is an integer number (1331820).

Almost surely, 2^26327980 is an apocalyptic number.

26327980 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 26327980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31963680).

26327980 is an abundant number, since it is smaller than the sum of its proper divisors (37599380).

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

26327980 is a wasteful number, since it uses less digits than its factorization.

26327980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218 (or 2216 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 26327980 is about 5131.0798083834. The cubic root of 26327980 is about 297.4900968857.

The spelling of 26327980 in words is "twenty-six million, three hundred twenty-seven thousand, nine hundred eighty".