26491164 has 36 divisors (see below), whose sum is σ = 71906184. Its totient is φ = 7568736.

The previous prime is 26491163. The next prime is 26491169. The reversal of 26491164 is 46119462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26491163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21939 + ... + 23114.

It is an arithmetic number, because the mean of its divisors is an integer number (1997394).

Almost surely, 2^26491164 is an apocalyptic number.

It is an amenable number.

26491164 is an abundant number, since it is smaller than the sum of its proper divisors (45415020).

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

26491164 is a wasteful number, since it uses less digits than its factorization.

26491164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45074 (or 45065 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 26491164 is about 5146.9567707530. The cubic root of 26491164 is about 298.1034579145.

The spelling of 26491164 in words is "twenty-six million, four hundred ninety-one thousand, one hundred sixty-four".