26556240 has 40 divisors (see below), whose sum is σ = 82325088. Its totient is φ = 7081600.

The previous prime is 26556203. The next prime is 26556247. The reversal of 26556240 is 4265562.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 26556198 and 26556207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26556247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55086 + ... + 55565.

Almost surely, 2^26556240 is an apocalyptic number.

26556240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26556240 is an abundant number, since it is smaller than the sum of its proper divisors (55768848).

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

26556240 is a wasteful number, since it uses less digits than its factorization.

26556240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110667 (or 110661 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 26556240 is about 5153.2746870315. The cubic root of 26556240 is about 298.3473570665.

It can be divided in two parts, 26556 and 240, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 26556240 in words is "twenty-six million, five hundred fifty-six thousand, two hundred forty".