26626540 has 12 divisors (see below), whose sum is σ = 55915776. Its totient is φ = 10650608.

The previous prime is 26626513. The next prime is 26626549. The reversal of 26626540 is 4562662.

It is not an unprimeable number, because it can be changed into a prime (26626549) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 665644 + ... + 665683.

It is an arithmetic number, because the mean of its divisors is an integer number (4659648).

Almost surely, 2^26626540 is an apocalyptic number.

26626540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26626540 is an abundant number, since it is smaller than the sum of its proper divisors (29289236).

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

26626540 is a wasteful number, since it uses less digits than its factorization.

26626540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331336 (or 1331334 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 26626540 is about 5160.0910844674. The cubic root of 26626540 is about 298.6103880150.

The spelling of 26626540 in words is "twenty-six million, six hundred twenty-six thousand, five hundred forty".