26830980 has 96 divisors (see below), whose sum is σ = 91082880. Its totient is φ = 6503040.

The previous prime is 26830967. The next prime is 26831023. The reversal of 26830980 is 8903862.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3682 + ... + 8198.

It is an arithmetic number, because the mean of its divisors is an integer number (948780).

Almost surely, 2^26830980 is an apocalyptic number.

26830980 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 26830980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45541440).

26830980 is an abundant number, since it is smaller than the sum of its proper divisors (64251900).

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

26830980 is a wasteful number, since it uses less digits than its factorization.

26830980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546 (or 4538 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 26830980 is about 5179.8629325495. The cubic root of 26830980 is about 299.3726891848.

The spelling of 26830980 in words is "twenty-six million, eight hundred thirty thousand, nine hundred eighty".