26061540 has 48 divisors (see below), whose sum is σ = 76816320. Its totient is φ = 6583680.

The previous prime is 26061523. The next prime is 26061551. The reversal of 26061540 is 4516062.

It is a self number, because there is not a number n which added to its sum of digits gives 26061540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10291 + ... + 12570.

It is an arithmetic number, because the mean of its divisors is an integer number (1600340).

Almost surely, 2^26061540 is an apocalyptic number.

26061540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26061540 is an abundant number, since it is smaller than the sum of its proper divisors (50754780).

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

26061540 is a wasteful number, since it uses less digits than its factorization.

26061540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22892 (or 22890 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 26061540 is about 5105.0504404952. The cubic root of 26061540 is about 296.4831560169.

The spelling of 26061540 in words is "twenty-six million, sixty-one thousand, five hundred forty".