26128434 has 16 divisors (see below), whose sum is σ = 53472672. Its totient is φ = 8506848.

The previous prime is 26128433. The next prime is 26128457. The reversal of 26128434 is 43482162.

It is not an unprimeable number, because it can be changed into a prime (26128433) 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, 50379 + ... + 50894.

It is an arithmetic number, because the mean of its divisors is an integer number (3342042).

Almost surely, 2^26128434 is an apocalyptic number.

26128434 is an abundant number, since it is smaller than the sum of its proper divisors (27344238).

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

26128434 is a wasteful number, since it uses less digits than its factorization.

26128434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101321.

The product of its digits is 9216, while the sum is 30.

The square root of 26128434 is about 5111.5979888876. The cubic root of 26128434 is about 296.7366073929.

It can be divided in two parts, 26128 and 434, that added together give a palindrome (26562).

The spelling of 26128434 in words is "twenty-six million, one hundred twenty-eight thousand, four hundred thirty-four".