26298881 has 16 divisors (see below), whose sum is σ = 32855040. Its totient is φ = 20528640.

The previous prime is 26298871. The next prime is 26298889. The reversal of 26298881 is 18889262.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26298881 is a prime.

It is a super-2 number, since 2×26298881² = 1383262283704322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26298889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125 + ... + 7253.

It is an arithmetic number, because the mean of its divisors is an integer number (2053440).

Almost surely, 2^26298881 is an apocalyptic number.

It is an amenable number.

26298881 is a deficient number, since it is larger than the sum of its proper divisors (6556159).

26298881 is a wasteful number, since it uses less digits than its factorization.

26298881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7184.

The product of its digits is 110592, while the sum is 44.

The square root of 26298881 is about 5128.2434614593. The cubic root of 26298881 is about 297.3804561721.

The spelling of 26298881 in words is "twenty-six million, two hundred ninety-eight thousand, eight hundred eighty-one".