26115980 has 24 divisors (see below), whose sum is σ = 59829840. Its totient is φ = 9496640.

The previous prime is 26115967. The next prime is 26116031. The reversal of 26115980 is 8951162.

It is a super-2 number, since 2×26115980² = 1364088822720800, which contains 22 as substring.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59135 + ... + 59574.

It is an arithmetic number, because the mean of its divisors is an integer number (2492910).

Almost surely, 2^26115980 is an apocalyptic number.

26115980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26115980 is an abundant number, since it is smaller than the sum of its proper divisors (33713860).

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

26115980 is a wasteful number, since it uses less digits than its factorization.

26115980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118729 (or 118727 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 26115980 is about 5110.3796336476. The cubic root of 26115980 is about 296.6894538459.

The spelling of 26115980 in words is "twenty-six million, one hundred fifteen thousand, nine hundred eighty".