26218040 has 64 divisors (see below), whose sum is σ = 61236000. Its totient is φ = 10097152.

The previous prime is 26218039. The next prime is 26218079. The reversal of 26218040 is 4081262.

26218040 is nontrivially palindromic in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 26217997 and 26218015.

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, 175886 + ... + 176034.

Almost surely, 2^26218040 is an apocalyptic number.

26218040 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 26218040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30618000).

26218040 is an abundant number, since it is smaller than the sum of its proper divisors (35017960).

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

26218040 is a wasteful number, since it uses less digits than its factorization.

26218040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 26218040 is about 5120.3554564112. The cubic root of 26218040 is about 297.0754342130.

The spelling of 26218040 in words is "twenty-six million, two hundred eighteen thousand, forty".