26232640 has 112 divisors (see below), whose sum is σ = 73152000. Its totient is φ = 8956416.

The previous prime is 26232631. The next prime is 26232641. The reversal of 26232640 is 4623262.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26232641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109641 + ... + 109879.

Almost surely, 2^26232640 is an apocalyptic number.

26232640 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 26232640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36576000).

26232640 is an abundant number, since it is smaller than the sum of its proper divisors (46919360).

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

26232640 is an equidigital number, since it uses as much as digits as its factorization.

26232640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 26232640 is about 5121.7809402590. The cubic root of 26232640 is about 297.1305679617.

The spelling of 26232640 in words is "twenty-six million, two hundred thirty-two thousand, six hundred forty".