26443641 has 16 divisors (see below), whose sum is σ = 41385344. Its totient is φ = 14701824.

The previous prime is 26443639. The next prime is 26443643. The reversal of 26443641 is 14634462.

It is an interprime number because it is at equal distance from previous prime (26443639) and next prime (26443643).

It is not a de Polignac number, because 26443641 - 2¹ = 26443639 is a prime.

It is a super-2 number, since 2×26443641² = 1398532298673762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26443599 and 26443608.

It is not an unprimeable number, because it can be changed into a prime (26443643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16240 + ... + 17793.

It is an arithmetic number, because the mean of its divisors is an integer number (2586584).

Almost surely, 2^26443641 is an apocalyptic number.

26443641 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26443641 is a deficient number, since it is larger than the sum of its proper divisors (14941703).

26443641 is a wasteful number, since it uses less digits than its factorization.

26443641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34080.

The product of its digits is 13824, while the sum is 30.

The square root of 26443641 is about 5142.3380869017. The cubic root of 26443641 is about 297.9250934049.

The spelling of 26443641 in words is "twenty-six million, four hundred forty-three thousand, six hundred forty-one".