26988528 has 80 divisors (see below), whose sum is σ = 81423360. Its totient is φ = 7542528.

The previous prime is 26988527. The next prime is 26988557. The reversal of 26988528 is 82588962.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26988527) 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, 14938 + ... + 16646.

It is an arithmetic number, because the mean of its divisors is an integer number (1017792).

Almost surely, 2^26988528 is an apocalyptic number.

26988528 is a gapful number since it is divisible by the number (28) 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 26988528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40711680).

26988528 is an abundant number, since it is smaller than the sum of its proper divisors (54434832).

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

26988528 is a wasteful number, since it uses less digits than its factorization.

26988528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774 (or 1768 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 26988528 is about 5195.0484117090. The cubic root of 26988528 is about 299.9575050920.

The spelling of 26988528 in words is "twenty-six million, nine hundred eighty-eight thousand, five hundred twenty-eight".