26409340 has 24 divisors (see below), whose sum is σ = 56371392. Its totient is φ = 10390080.

The previous prime is 26409337. The next prime is 26409367. The reversal of 26409340 is 4390462.

It is a junction number, because it is equal to n+sod(n) for n = 26409299 and 26409308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9604 + ... + 12043.

It is an arithmetic number, because the mean of its divisors is an integer number (2348808).

Almost surely, 2^26409340 is an apocalyptic number.

26409340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26409340 is an abundant number, since it is smaller than the sum of its proper divisors (29962052).

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

26409340 is a wasteful number, since it uses less digits than its factorization.

26409340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21717 (or 21715 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 26409340 is about 5139.0018486083. The cubic root of 26409340 is about 297.7962212078.

The spelling of 26409340 in words is "twenty-six million, four hundred nine thousand, three hundred forty".