26187980 has 48 divisors (see below), whose sum is σ = 67690560. Its totient is φ = 8287488.

The previous prime is 26187979. The next prime is 26188003. The reversal of 26187980 is 8978162.

It is a zygodrome in base 2.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5375 + ... + 9014.

It is an arithmetic number, because the mean of its divisors is an integer number (1410220).

Almost surely, 2^26187980 is an apocalyptic number.

26187980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26187980 is an abundant number, since it is smaller than the sum of its proper divisors (41502580).

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

26187980 is a wasteful number, since it uses less digits than its factorization.

26187980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14418 (or 14416 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 26187980 is about 5117.4192714688. The cubic root of 26187980 is about 296.9618546240.

The spelling of 26187980 in words is "twenty-six million, one hundred eighty-seven thousand, nine hundred eighty".