26319261 has 8 divisors (see below), whose sum is σ = 35151520. Its totient is φ = 17516592.

The previous prime is 26319259. The next prime is 26319299. The reversal of 26319261 is 16291362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26319261 - 2¹ = 26319259 is a prime.

It is a super-2 number, since 2×26319261² = 1385406999172242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26319221) 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 7 ways as a sum of consecutive naturals, for example, 5230 + ... + 8943.

It is an arithmetic number, because the mean of its divisors is an integer number (4393940).

Almost surely, 2^26319261 is an apocalyptic number.

It is an amenable number.

26319261 is a deficient number, since it is larger than the sum of its proper divisors (8832259).

26319261 is a wasteful number, since it uses less digits than its factorization.

26319261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14795.

The product of its digits is 3888, while the sum is 30.

The square root of 26319261 is about 5130.2301117981. The cubic root of 26319261 is about 297.4572534679.

The spelling of 26319261 in words is "twenty-six million, three hundred nineteen thousand, two hundred sixty-one".