26129938 has 4 divisors (see below), whose sum is σ = 39194910. Its totient is φ = 13064968.

The previous prime is 26129923. The next prime is 26129947. The reversal of 26129938 is 83992162.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 24970009 + 1159929 = 4997^2 + 1077^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 26129938.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6532483 + ... + 6532486.

Almost surely, 2^26129938 is an apocalyptic number.

26129938 is a deficient number, since it is larger than the sum of its proper divisors (13064972).

26129938 is a wasteful number, since it uses less digits than its factorization.

26129938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13064971.

The product of its digits is 46656, while the sum is 40.

The square root of 26129938 is about 5111.7451031913. The cubic root of 26129938 is about 296.7423008492.

The spelling of 26129938 in words is "twenty-six million, one hundred twenty-nine thousand, nine hundred thirty-eight".