26431316 has 6 divisors (see below), whose sum is σ = 46254810. Its totient is φ = 13215656.

The previous prime is 26431303. The next prime is 26431331. The reversal of 26431316 is 61313462.

It can be written as a sum of positive squares in only one way, i.e., 16483600 + 9947716 = 4060^2 + 3154^2 .

It is a super-2 number, since 2×26431316² = 1397228930983712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3303911 + ... + 3303918.

It is an arithmetic number, because the mean of its divisors is an integer number (7709135).

Almost surely, 2^26431316 is an apocalyptic number.

It is an amenable number.

26431316 is a deficient number, since it is larger than the sum of its proper divisors (19823494).

26431316 is a wasteful number, since it uses less digits than its factorization.

26431316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6607833 (or 6607831 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 26431316 is about 5141.1395623928. The cubic root of 26431316 is about 297.8788000144.

Adding to 26431316 its reverse (61313462), we get a palindrome (87744778).

The spelling of 26431316 in words is "twenty-six million, four hundred thirty-one thousand, three hundred sixteen".