26776680 has 128 divisors (see below), whose sum is σ = 92897280. Its totient is φ = 6048000.

The previous prime is 26776667. The next prime is 26776691. The reversal of 26776680 is 8667762.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106555 + ... + 106805.

It is an arithmetic number, because the mean of its divisors is an integer number (725760).

Almost surely, 2^26776680 is an apocalyptic number.

26776680 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 26776680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46448640).

26776680 is an abundant number, since it is smaller than the sum of its proper divisors (66120600).

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

26776680 is a wasteful number, since it uses less digits than its factorization.

26776680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 26776680 is about 5174.6188265417. The cubic root of 26776680 is about 299.1705979763.

The spelling of 26776680 in words is "twenty-six million, seven hundred seventy-six thousand, six hundred eighty".