26540864 has 28 divisors (see below), whose sum is σ = 60191904. Its totient is φ = 11374464.

The previous prime is 26540851. The next prime is 26540879. The reversal of 26540864 is 46804562.

26540864 = T₉₅ + T₉₆ + ... + T₅₄₂.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29174 + ... + 30069.

Almost surely, 2^26540864 is an apocalyptic number.

It is an amenable number.

26540864 is an abundant number, since it is smaller than the sum of its proper divisors (33651040).

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

26540864 is an equidigital number, since it uses as much as digits as its factorization.

26540864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59262 (or 59252 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 26540864 is about 5151.7826041090. The cubic root of 26540864 is about 298.2897651457.

The spelling of 26540864 in words is "twenty-six million, five hundred forty thousand, eight hundred sixty-four".