26426440 has 16 divisors (see below), whose sum is σ = 59459580. Its totient is φ = 10570560.

The previous prime is 26426437. The next prime is 26426441. The reversal of 26426440 is 4462462.

It can be written as a sum of positive squares in 2 ways, for example, as 25462116 + 964324 = 5046^2 + 982^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26426399 and 26426408.

It is not an unprimeable number, because it can be changed into a prime (26426441) 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 3 ways as a sum of consecutive naturals, for example, 330291 + ... + 330370.

Almost surely, 2^26426440 is an apocalyptic number.

26426440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26426440 is an abundant number, since it is smaller than the sum of its proper divisors (33033140).

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

26426440 is a wasteful number, since it uses less digits than its factorization.

26426440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660672 (or 660668 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 26426440 is about 5140.6653265895. The cubic root of 26426440 is about 297.8604815122.

The spelling of 26426440 in words is "twenty-six million, four hundred twenty-six thousand, four hundred forty".