26540064 has 36 divisors (see below), whose sum is σ = 75474126. Its totient is φ = 8846592.

The previous prime is 26540057. The next prime is 26540071. The reversal of 26540064 is 46004562.

It is a happy number.

26540064 is a `hidden beast` number, since 2 + 654 + 0 + 0 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (26540057) and next prime (26540071).

It can be written as a sum of positive squares in only one way, i.e., 20250000 + 6290064 = 4500^2 + 2508^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45789 + ... + 46364.

Almost surely, 2^26540064 is an apocalyptic number.

26540064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26540064 is an abundant number, since it is smaller than the sum of its proper divisors (48934062).

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

26540064 is a wasteful number, since it uses less digits than its factorization.

26540064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92169 (or 92158 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 26540064 is about 5151.7049604961. The cubic root of 26540064 is about 298.2867680791.

The spelling of 26540064 in words is "twenty-six million, five hundred forty thousand, sixty-four".