26918240 has 48 divisors (see below), whose sum is σ = 65327472. Its totient is φ = 10473984.

The previous prime is 26918237. The next prime is 26918279. The reversal of 26918240 is 4281962.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 26918197 and 26918206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3647 + ... + 8193.

It is an arithmetic number, because the mean of its divisors is an integer number (1360989).

Almost surely, 2^26918240 is an apocalyptic number.

26918240 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 26918240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32663736).

26918240 is an abundant number, since it is smaller than the sum of its proper divisors (38409232).

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

26918240 is a wasteful number, since it uses less digits than its factorization.

26918240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4599 (or 4591 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 26918240 is about 5188.2790981211. The cubic root of 26918240 is about 299.6968790139.

The spelling of 26918240 in words is "twenty-six million, nine hundred eighteen thousand, two hundred forty".