26781432 has 32 divisors (see below), whose sum is σ = 68513280. Its totient is φ = 8719200.

The previous prime is 26781421. The next prime is 26781439. The reversal of 26781432 is 23418762.

It is a junction number, because it is equal to n+sod(n) for n = 26781393 and 26781402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26781439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11944 + ... + 14007.

It is an arithmetic number, because the mean of its divisors is an integer number (2141040).

Almost surely, 2^26781432 is an apocalyptic number.

It is an amenable number.

26781432 is an abundant number, since it is smaller than the sum of its proper divisors (41731848).

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

26781432 is a wasteful number, since it uses less digits than its factorization.

26781432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26003 (or 25999 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 26781432 is about 5175.0779704271. The cubic root of 26781432 is about 299.1882946511.

The spelling of 26781432 in words is "twenty-six million, seven hundred eighty-one thousand, four hundred thirty-two".