26440105 has 8 divisors (see below), whose sum is σ = 31815432. Its totient is φ = 21093888.

The previous prime is 26440103. The next prime is 26440129. The reversal of 26440105 is 50104462.

It can be written as a sum of positive squares in 4 ways, for example, as 11042329 + 15397776 = 3323^2 + 3924^2 .

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 26440105 - 2¹ = 26440103 is a prime.

It is a super-2 number, since 2×26440105² = 1398158304822050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26440103) 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, 5224 + ... + 8953.

It is an arithmetic number, because the mean of its divisors is an integer number (3976929).

Almost surely, 2^26440105 is an apocalyptic number.

It is an amenable number.

26440105 is a deficient number, since it is larger than the sum of its proper divisors (5375327).

26440105 is a wasteful number, since it uses less digits than its factorization.

26440105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14555.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 26440105 is about 5141.9942629295. The cubic root of 26440105 is about 297.9118134625.

Adding to 26440105 its reverse (50104462), we get a palindrome (76544567).

The spelling of 26440105 in words is "twenty-six million, four hundred forty thousand, one hundred five".