26310240 has 216 divisors, whose sum is σ = 99341424. Its totient is φ = 6336000.

The previous prime is 26310191. The next prime is 26310241. The reversal of 26310240 is 4201362.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26310241) 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 35 ways as a sum of consecutive naturals, for example, 174165 + ... + 174315.

It is an arithmetic number, because the mean of its divisors is an integer number (459914).

Almost surely, 2^26310240 is an apocalyptic number.

26310240 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 26310240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49670712).

26310240 is an abundant number, since it is smaller than the sum of its proper divisors (73031184).

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

26310240 is a wasteful number, since it uses less digits than its factorization.

26310240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 26310240 is about 5129.3508361195. The cubic root of 26310240 is about 297.4232648171.

The spelling of 26310240 in words is "twenty-six million, three hundred ten thousand, two hundred forty".