26129426 has 12 divisors (see below), whose sum is σ = 40973982. Its totient is φ = 12496176.

The previous prime is 26129419. The next prime is 26129429. The reversal of 26129426 is 62492162.

It can be written as a sum of positive squares in only one way, i.e., 16200625 + 9928801 = 4025^2 + 3151^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26129392 and 26129401.

It is not an unprimeable number, because it can be changed into a prime (26129429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11291 + ... + 13406.

Almost surely, 2^26129426 is an apocalyptic number.

26129426 is a deficient number, since it is larger than the sum of its proper divisors (14844556).

26129426 is a wasteful number, since it uses less digits than its factorization.

26129426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24745 (or 24722 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 26129426 is about 5111.6950222015. The cubic root of 26129426 is about 296.7403626758.

The spelling of 26129426 in words is "twenty-six million, one hundred twenty-nine thousand, four hundred twenty-six".