26660992 has 32 divisors (see below), whose sum is σ = 54835200. Its totient is φ = 12898560.

The previous prime is 26660951. The next prime is 26660993. The reversal of 26660992 is 29906662.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26660993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609 + ... + 7327.

It is an arithmetic number, because the mean of its divisors is an integer number (1713600).

Almost surely, 2^26660992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26660992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27417600).

26660992 is an abundant number, since it is smaller than the sum of its proper divisors (28174208).

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

26660992 is an equidigital number, since it uses as much as digits as its factorization.

26660992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6764 (or 6752 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 26660992 is about 5163.4283184721. The cubic root of 26660992 is about 298.7391228686.

The spelling of 26660992 in words is "twenty-six million, six hundred sixty thousand, nine hundred ninety-two".