26778080 has 48 divisors (see below), whose sum is σ = 72303840. Its totient is φ = 9180672.

The previous prime is 26778067. The next prime is 26778083. The reversal of 26778080 is 8087762.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26778083) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10835 + ... + 13074.

It is an arithmetic number, because the mean of its divisors is an integer number (1506330).

Almost surely, 2^26778080 is an apocalyptic number.

26778080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26778080 is an abundant number, since it is smaller than the sum of its proper divisors (45525760).

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

26778080 is a wasteful number, since it uses less digits than its factorization.

26778080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23931 (or 23923 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 26778080 is about 5174.7541004380. The cubic root of 26778080 is about 299.1758118607.

The spelling of 26778080 in words is "twenty-six million, seven hundred seventy-eight thousand, eighty".