26280780 has 48 divisors (see below), whose sum is σ = 74027520. Its totient is φ = 6966208.

The previous prime is 26280763. The next prime is 26280791. The reversal of 26280780 is 8708262.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9517 + ... + 11963.

It is an arithmetic number, because the mean of its divisors is an integer number (1542240).

Almost surely, 2^26280780 is an apocalyptic number.

26280780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26280780 is an abundant number, since it is smaller than the sum of its proper divisors (47746740).

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

26280780 is a wasteful number, since it uses less digits than its factorization.

26280780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638 (or 2636 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 26280780 is about 5126.4783233717. The cubic root of 26280780 is about 297.3122134829.

The spelling of 26280780 in words is "twenty-six million, two hundred eighty thousand, seven hundred eighty".