26181340 has 12 divisors (see below), whose sum is σ = 54980856. Its totient is φ = 10472528.

The previous prime is 26181313. The next prime is 26181349. The reversal of 26181340 is 4318162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26181349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654514 + ... + 654553.

It is an arithmetic number, because the mean of its divisors is an integer number (4581738).

Almost surely, 2^26181340 is an apocalyptic number.

26181340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26181340 is an abundant number, since it is smaller than the sum of its proper divisors (28799516).

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

26181340 is a wasteful number, since it uses less digits than its factorization.

26181340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309076 (or 1309074 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 26181340 is about 5116.7704658310. The cubic root of 26181340 is about 296.9367541340.

The spelling of 26181340 in words is "twenty-six million, one hundred eighty-one thousand, three hundred forty".