26291128 has 8 divisors (see below), whose sum is σ = 49295880. Its totient is φ = 13145560.

The previous prime is 26291123. The next prime is 26291137. The reversal of 26291128 is 82119262.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 26291128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26291123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1643188 + ... + 1643203.

It is an arithmetic number, because the mean of its divisors is an integer number (6161985).

Almost surely, 2^26291128 is an apocalyptic number.

It is an amenable number.

26291128 is a deficient number, since it is larger than the sum of its proper divisors (23004752).

26291128 is a wasteful number, since it uses less digits than its factorization.

26291128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286397 (or 3286393 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 26291128 is about 5127.4874938902. The cubic root of 26291128 is about 297.3512303750.

The spelling of 26291128 in words is "twenty-six million, two hundred ninety-one thousand, one hundred twenty-eight".