26317420 has 12 divisors (see below), whose sum is σ = 55266624. Its totient is φ = 10526960.

The previous prime is 26317409. The next prime is 26317429. The reversal of 26317420 is 2471362.

It is not an unprimeable number, because it can be changed into a prime (26317429) 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, 657916 + ... + 657955.

It is an arithmetic number, because the mean of its divisors is an integer number (4605552).

Almost surely, 2^26317420 is an apocalyptic number.

26317420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26317420 is an abundant number, since it is smaller than the sum of its proper divisors (28949204).

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

26317420 is a wasteful number, since it uses less digits than its factorization.

26317420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315880 (or 1315878 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 26317420 is about 5130.0506820109. The cubic root of 26317420 is about 297.4503177163.

Adding to 26317420 its reverse (2471362), we get a palindrome (28788782).

The spelling of 26317420 in words is "twenty-six million, three hundred seventeen thousand, four hundred twenty".