26878680 has 96 divisors (see below), whose sum is σ = 88030800. Its totient is φ = 7112448.

The previous prime is 26878627. The next prime is 26878693. The reversal of 26878680 is 8687862.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70731 + ... + 71109.

Almost surely, 2^26878680 is an apocalyptic number.

26878680 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 26878680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44015400).

26878680 is an abundant number, since it is smaller than the sum of its proper divisors (61152120).

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

26878680 is a wasteful number, since it uses less digits than its factorization.

26878680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 26878680 is about 5184.4652568997. The cubic root of 26878680 is about 299.5499919801.

The spelling of 26878680 in words is "twenty-six million, eight hundred seventy-eight thousand, six hundred eighty".