26139768 has 32 divisors (see below), whose sum is σ = 65480400. Its totient is φ = 8695808.

The previous prime is 26139749. The next prime is 26139787. The reversal of 26139768 is 86793162.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26139749) and next prime (26139787).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17848 + ... + 19256.

Almost surely, 2^26139768 is an apocalyptic number.

It is an amenable number.

26139768 is an abundant number, since it is smaller than the sum of its proper divisors (39340632).

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

26139768 is a wasteful number, since it uses less digits than its factorization.

26139768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191 (or 2187 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 26139768 is about 5112.7065239460. The cubic root of 26139768 is about 296.7795073555.

The spelling of 26139768 in words is "twenty-six million, one hundred thirty-nine thousand, seven hundred sixty-eight".