26656140 has 48 divisors (see below), whose sum is σ = 85300992. Its totient is φ = 6092736.

The previous prime is 26656129. The next prime is 26656163. The reversal of 26656140 is 4165662.

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 = 26656098 and 26656107.

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, 31314 + ... + 32153.

It is an arithmetic number, because the mean of its divisors is an integer number (1777104).

Almost surely, 2^26656140 is an apocalyptic number.

26656140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26656140 is an abundant number, since it is smaller than the sum of its proper divisors (58644852).

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

26656140 is a wasteful number, since it uses less digits than its factorization.

26656140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63486 (or 63484 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 26656140 is about 5162.9584542198. The cubic root of 26656140 is about 298.7209993849.

It can be divided in two parts, 26656 and 140, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 26656140 in words is "twenty-six million, six hundred fifty-six thousand, one hundred forty".