26534540 has 12 divisors (see below), whose sum is σ = 55722576. Its totient is φ = 10613808.

The previous prime is 26534539. The next prime is 26534561. The reversal of 26534540 is 4543562.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663344 + ... + 663383.

It is an arithmetic number, because the mean of its divisors is an integer number (4643548).

Almost surely, 2^26534540 is an apocalyptic number.

26534540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26534540 is an abundant number, since it is smaller than the sum of its proper divisors (29188036).

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

26534540 is a wasteful number, since it uses less digits than its factorization.

26534540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326736 (or 1326734 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 26534540 is about 5151.1687994085. The cubic root of 26534540 is about 298.2660716905.

The spelling of 26534540 in words is "twenty-six million, five hundred thirty-four thousand, five hundred forty".