26139234 has 32 divisors (see below), whose sum is σ = 60388416. Its totient is φ = 7454720.

The previous prime is 26139221. The next prime is 26139259. The reversal of 26139234 is 43293162.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10527 + ... + 12770.

It is an arithmetic number, because the mean of its divisors is an integer number (1887138).

Almost surely, 2^26139234 is an apocalyptic number.

26139234 is an abundant number, since it is smaller than the sum of its proper divisors (34249182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26139234 is a wasteful number, since it uses less digits than its factorization.

26139234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23330.

The product of its digits is 7776, while the sum is 30.

The square root of 26139234 is about 5112.6543008500. The cubic root of 26139234 is about 296.7774864075. Note that the first 3 decimals are identical.

The spelling of 26139234 in words is "twenty-six million, one hundred thirty-nine thousand, two hundred thirty-four".