26887280 has 120 divisors (see below), whose sum is σ = 76758480. Its totient is φ = 8733312.

The previous prime is 26887277. The next prime is 26887283. The reversal of 26887280 is 8278862.

It is an interprime number because it is at equal distance from previous prime (26887277) and next prime (26887283).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26887283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1415111 + ... + 1415129.

It is an arithmetic number, because the mean of its divisors is an integer number (639654).

Almost surely, 2^26887280 is an apocalyptic number.

26887280 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 26887280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38379240).

26887280 is an abundant number, since it is smaller than the sum of its proper divisors (49871200).

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

26887280 is an equidigital number, since it uses as much as digits as its factorization.

26887280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 26887280 is about 5185.2945914384. The cubic root of 26887280 is about 299.5819361980.

The spelling of 26887280 in words is "twenty-six million, eight hundred eighty-seven thousand, two hundred eighty".