26320420 has 48 divisors (see below), whose sum is σ = 66890880. Its totient is φ = 8492544.

The previous prime is 26320417. The next prime is 26320421. The reversal of 26320420 is 2402362.

It is not an unprimeable number, because it can be changed into a prime (26320421) 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 15 ways as a sum of consecutive naturals, for example, 3150 + ... + 7909.

It is an arithmetic number, because the mean of its divisors is an integer number (1393560).

Almost surely, 2^26320420 is an apocalyptic number.

26320420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26320420 is an abundant number, since it is smaller than the sum of its proper divisors (40570460).

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

26320420 is a wasteful number, since it uses less digits than its factorization.

26320420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11092 (or 11090 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 26320420 is about 5130.3430684507. The cubic root of 26320420 is about 297.4616196987.

Adding to 26320420 its reverse (2402362), we get a palindrome (28722782).

The spelling of 26320420 in words is "twenty-six million, three hundred twenty thousand, four hundred twenty".