26668260 has 36 divisors (see below), whose sum is σ = 80894268. Its totient is φ = 7111488.

The previous prime is 26668253. The next prime is 26668273. The reversal of 26668260 is 6286662.

It can be written as a sum of positive squares in 2 ways, for example, as 15539364 + 11128896 = 3942^2 + 3336^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×26668260² = 1422392182855200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73899 + ... + 74258.

It is an arithmetic number, because the mean of its divisors is an integer number (2247063).

Almost surely, 2^26668260 is an apocalyptic number.

26668260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26668260 is an abundant number, since it is smaller than the sum of its proper divisors (54226008).

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

26668260 is a wasteful number, since it uses less digits than its factorization.

26668260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148172 (or 148167 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 26668260 is about 5164.1320664754. The cubic root of 26668260 is about 298.7662666283.

The spelling of 26668260 in words is "twenty-six million, six hundred sixty-eight thousand, two hundred sixty".