26427680 has 24 divisors (see below), whose sum is σ = 62435772. Its totient is φ = 10571008.

The previous prime is 26427659. The next prime is 26427697. The reversal of 26427680 is 8672462.

It can be written as a sum of positive squares in 2 ways, for example, as 24880144 + 1547536 = 4988^2 + 1244^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26427680.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82427 + ... + 82746.

Almost surely, 2^26427680 is an apocalyptic number.

26427680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26427680 is an abundant number, since it is smaller than the sum of its proper divisors (36008092).

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

26427680 is a wasteful number, since it uses less digits than its factorization.

26427680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165188 (or 165180 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 26427680 is about 5140.7859321314. The cubic root of 26427680 is about 297.8651402457.

The spelling of 26427680 in words is "twenty-six million, four hundred twenty-seven thousand, six hundred eighty".