26321280 has 64 divisors (see below), whose sum is σ = 83905200. Its totient is φ = 7018496.

The previous prime is 26321249. The next prime is 26321291. The reversal of 26321280 is 8212362.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 26321280.

It is a congruent number.

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, 4935 + ... + 8774.

Almost surely, 2^26321280 is an apocalyptic number.

26321280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26321280 is an abundant number, since it is smaller than the sum of its proper divisors (57583920).

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

26321280 is a wasteful number, since it uses less digits than its factorization.

26321280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13731 (or 13719 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 26321280 is about 5130.4268828237. The cubic root of 26321280 is about 297.4648594419.

The spelling of 26321280 in words is "twenty-six million, three hundred twenty-one thousand, two hundred eighty".