26079980 has 24 divisors (see below), whose sum is σ = 55521312. Its totient is φ = 10288512.

The previous prime is 26079979. The next prime is 26079983. The reversal of 26079980 is 8997062.

It is not an unprimeable number, because it can be changed into a prime (26079983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7472 + ... + 10391.

It is an arithmetic number, because the mean of its divisors is an integer number (2313388).

Almost surely, 2^26079980 is an apocalyptic number.

26079980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26079980 is an abundant number, since it is smaller than the sum of its proper divisors (29441332).

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

26079980 is a wasteful number, since it uses less digits than its factorization.

26079980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17945 (or 17943 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 26079980 is about 5106.8561757700. The cubic root of 26079980 is about 296.5530656803.

The spelling of 26079980 in words is "twenty-six million, seventy-nine thousand, nine hundred eighty".