26261407 has 4 divisors (see below), whose sum is σ = 26279176. Its totient is φ = 26243640.

The previous prime is 26261383. The next prime is 26261429. The reversal of 26261407 is 70416262.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26261407 - 2¹⁹ = 25737119 is a prime.

It is a super-2 number, since 2×26261407² = 1379322995239298, 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 (26211407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6444 + ... + 9697.

It is an arithmetic number, because the mean of its divisors is an integer number (6569794).

Almost surely, 2^26261407 is an apocalyptic number.

26261407 is a deficient number, since it is larger than the sum of its proper divisors (17769).

26261407 is a wasteful number, since it uses less digits than its factorization.

26261407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17768.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 26261407 is about 5124.5884712824. The cubic root of 26261407 is about 297.2391404946.

Adding to 26261407 its reverse (70416262), we get a palindrome (96677669).

The spelling of 26261407 in words is "twenty-six million, two hundred sixty-one thousand, four hundred seven".