26863880 has 32 divisors (see below), whose sum is σ = 61473600. Its totient is φ = 10562496.

The previous prime is 26863873. The next prime is 26863883. The reversal of 26863880 is 8836862.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (26863883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3332 + ... + 8051.

It is an arithmetic number, because the mean of its divisors is an integer number (1921050).

Almost surely, 2^26863880 is an apocalyptic number.

26863880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26863880 is an abundant number, since it is smaller than the sum of its proper divisors (34609720).

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

26863880 is a wasteful number, since it uses less digits than its factorization.

26863880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11453 (or 11449 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 26863880 is about 5183.0377193302. The cubic root of 26863880 is about 299.4950022531.

The spelling of 26863880 in words is "twenty-six million, eight hundred sixty-three thousand, eight hundred eighty".