26005740 has 24 divisors (see below), whose sum is σ = 72816240. Its totient is φ = 6934848.

The previous prime is 26005717. The next prime is 26005747. The reversal of 26005740 is 4750062.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 26005740.

It is not an unprimeable number, because it can be changed into a prime (26005747) 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, 216655 + ... + 216774.

It is an arithmetic number, because the mean of its divisors is an integer number (3034010).

Almost surely, 2^26005740 is an apocalyptic number.

26005740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26005740 is an abundant number, since it is smaller than the sum of its proper divisors (46810500).

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

26005740 is a wasteful number, since it uses less digits than its factorization.

26005740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433441 (or 433439 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 26005740 is about 5099.5823358389. The cubic root of 26005740 is about 296.2714061692.

The spelling of 26005740 in words is "twenty-six million, five thousand, seven hundred forty".