26530280 has 64 divisors (see below), whose sum is σ = 69914880. Its totient is φ = 8870400.

The previous prime is 26530279. The next prime is 26530291. The reversal of 26530280 is 8203562.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

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, 10325 + ... + 12635.

It is an arithmetic number, because the mean of its divisors is an integer number (1092420).

Almost surely, 2^26530280 is an apocalyptic number.

26530280 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 26530280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34957440).

26530280 is an abundant number, since it is smaller than the sum of its proper divisors (43384600).

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

26530280 is a wasteful number, since it uses less digits than its factorization.

26530280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370 (or 2366 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 26530280 is about 5150.7552844219. The cubic root of 26530280 is about 298.2501090814.

The spelling of 26530280 in words is "twenty-six million, five hundred thirty thousand, two hundred eighty".