26240447 has 8 divisors (see below), whose sum is σ = 28326240. Its totient is φ = 24233440.

The previous prime is 26240443. The next prime is 26240453. The reversal of 26240447 is 74404262.

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

It is a cyclic number.

It is not a de Polignac number, because 26240447 - 2² = 26240443 is a prime.

It is a super-2 number, since 2×26240447² = 1377122117519618, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26240441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19004 + ... + 20337.

It is an arithmetic number, because the mean of its divisors is an integer number (3540780).

Almost surely, 2^26240447 is an apocalyptic number.

26240447 is a deficient number, since it is larger than the sum of its proper divisors (2085793).

26240447 is a wasteful number, since it uses less digits than its factorization.

26240447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39393.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 26240447 is about 5122.5430208052. The cubic root of 26240447 is about 297.1600410185.

The spelling of 26240447 in words is "twenty-six million, two hundred forty thousand, four hundred forty-seven".