26645280 has 48 divisors (see below), whose sum is σ = 83934144. Its totient is φ = 7105280.

The previous prime is 26645279. The next prime is 26645303. The reversal of 26645280 is 8254662.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27276 + ... + 28235.

It is an arithmetic number, because the mean of its divisors is an integer number (1748628).

Almost surely, 2^26645280 is an apocalyptic number.

26645280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26645280 is an abundant number, since it is smaller than the sum of its proper divisors (57288864).

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

26645280 is a wasteful number, since it uses less digits than its factorization.

26645280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55529 (or 55521 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 26645280 is about 5161.9066244945. The cubic root of 26645280 is about 298.6804264848.

The spelling of 26645280 in words is "twenty-six million, six hundred forty-five thousand, two hundred eighty".