26988860 has 24 divisors (see below), whose sum is σ = 60011280. Its totient is φ = 10160384.

The previous prime is 26988853. The next prime is 26988869. The reversal of 26988860 is 6888962.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26988869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39350 + ... + 40029.

It is an arithmetic number, because the mean of its divisors is an integer number (2500470).

Almost surely, 2^26988860 is an apocalyptic number.

26988860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26988860 is an abundant number, since it is smaller than the sum of its proper divisors (33022420).

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

26988860 is a wasteful number, since it uses less digits than its factorization.

26988860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79405 (or 79403 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 26988860 is about 5195.0803651147. The cubic root of 26988860 is about 299.9587350650.

The spelling of 26988860 in words is "twenty-six million, nine hundred eighty-eight thousand, eight hundred sixty".