26139612 has 48 divisors (see below), whose sum is σ = 63316512. Its totient is φ = 8386560.

The previous prime is 26139593. The next prime is 26139613. The reversal of 26139612 is 21693162.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 26139612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26139613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49912 + ... + 50432.

It is an arithmetic number, because the mean of its divisors is an integer number (1319094).

Almost surely, 2^26139612 is an apocalyptic number.

It is an amenable number.

26139612 is an abundant number, since it is smaller than the sum of its proper divisors (37176900).

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

26139612 is a wasteful number, since it uses less digits than its factorization.

26139612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 676 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 26139612 is about 5112.6912678158. The cubic root of 26139612 is about 296.7789169691.

The spelling of 26139612 in words is "twenty-six million, one hundred thirty-nine thousand, six hundred twelve".