26434404 has 48 divisors (see below), whose sum is σ = 69014400. Its totient is φ = 8749728.

The previous prime is 26434403. The next prime is 26434417. The reversal of 26434404 is 40443462.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26434403) 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 15 ways as a sum of consecutive naturals, for example, 16177 + ... + 17735.

It is an arithmetic number, because the mean of its divisors is an integer number (1437800).

Almost surely, 2^26434404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26434404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34507200).

26434404 is an abundant number, since it is smaller than the sum of its proper divisors (42579996).

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

26434404 is a wasteful number, since it uses less digits than its factorization.

26434404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729 (or 1721 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 26434404 is about 5141.4398761436. The cubic root of 26434404 is about 297.8904000663.

Adding to 26434404 its reverse (40443462), we get a palindrome (66877866).

The spelling of 26434404 in words is "twenty-six million, four hundred thirty-four thousand, four hundred four".