26213664 has 24 divisors (see below), whose sum is σ = 68811120. Its totient is φ = 8737856.

The previous prime is 26213657. The next prime is 26213699. The reversal of 26213664 is 46631262.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

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, 136434 + ... + 136625.

It is an arithmetic number, because the mean of its divisors is an integer number (2867130).

Almost surely, 2^26213664 is an apocalyptic number.

26213664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26213664 is an abundant number, since it is smaller than the sum of its proper divisors (42597456).

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

26213664 is a wasteful number, since it uses less digits than its factorization.

26213664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273072 (or 273064 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 26213664 is about 5119.9281244955. The cubic root of 26213664 is about 297.0589052069.

The spelling of 26213664 in words is "twenty-six million, two hundred thirteen thousand, six hundred sixty-four".