26489960 has 64 divisors (see below), whose sum is σ = 68947200. Its totient is φ = 8971776.

The previous prime is 26489959. The next prime is 26489989. The reversal of 26489960 is 6998462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24389 + ... + 25451.

It is an arithmetic number, because the mean of its divisors is an integer number (1077300).

Almost surely, 2^26489960 is an apocalyptic number.

26489960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26489960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34473600).

26489960 is an abundant number, since it is smaller than the sum of its proper divisors (42457240).

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

26489960 is a wasteful number, since it uses less digits than its factorization.

26489960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170 (or 1166 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 26489960 is about 5146.8398071049. The cubic root of 26489960 is about 298.0989416665.

The spelling of 26489960 in words is "twenty-six million, four hundred eighty-nine thousand, nine hundred sixty".