26012880 has 80 divisors (see below), whose sum is σ = 89607360. Its totient is φ = 6936192.

The previous prime is 26012879. The next prime is 26012927. The reversal of 26012880 is 8821062.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3862 + ... + 8181.

It is an arithmetic number, because the mean of its divisors is an integer number (1120092).

Almost surely, 2^26012880 is an apocalyptic number.

26012880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26012880 is an abundant number, since it is smaller than the sum of its proper divisors (63594480).

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

26012880 is a wasteful number, since it uses less digits than its factorization.

26012880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12065 (or 12053 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 26012880 is about 5100.2823451256. The cubic root of 26012880 is about 296.2985179309.

The spelling of 26012880 in words is "twenty-six million, twelve thousand, eight hundred eighty".