26305140 has 24 divisors (see below), whose sum is σ = 73654560. Its totient is φ = 7014688.

The previous prime is 26305127. The next prime is 26305141. The reversal of 26305140 is 4150362.

It is a happy number.

It is a super-3 number, since 3×26305140³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26305141) 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 7 ways as a sum of consecutive naturals, for example, 219150 + ... + 219269.

It is an arithmetic number, because the mean of its divisors is an integer number (3068940).

Almost surely, 2^26305140 is an apocalyptic number.

26305140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26305140 is an abundant number, since it is smaller than the sum of its proper divisors (47349420).

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

26305140 is a wasteful number, since it uses less digits than its factorization.

26305140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438431 (or 438429 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 26305140 is about 5128.8536730930. The cubic root of 26305140 is about 297.4040459797.

The spelling of 26305140 in words is "twenty-six million, three hundred five thousand, one hundred forty".