26388880 has 40 divisors (see below), whose sum is σ = 70120512. Its totient is φ = 9047424.

The previous prime is 26388877. The next prime is 26388883. The reversal of 26388880 is 8888362.

It is an interprime number because it is at equal distance from previous prime (26388877) and next prime (26388883).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (26388883) 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, 23002 + ... + 24121.

Almost surely, 2^26388880 is an apocalyptic number.

26388880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26388880 is an abundant number, since it is smaller than the sum of its proper divisors (43731632).

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

26388880 is a wasteful number, since it uses less digits than its factorization.

26388880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47143 (or 47137 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 26388880 is about 5137.0108039598. The cubic root of 26388880 is about 297.7192978565.

The spelling of 26388880 in words is "twenty-six million, three hundred eighty-eight thousand, eight hundred eighty".