26239285 has 12 divisors (see below), whose sum is σ = 33233868. Its totient is φ = 19885248.

The previous prime is 26239273. The next prime is 26239309. The reversal of 26239285 is 58293262.

It can be written as a sum of positive squares in 2 ways, for example, as 7800849 + 18438436 = 2793^2 + 4294^2 .

It is a de Polignac number, because none of the positive numbers 2^k-26239285 is a prime.

It is a super-2 number, since 2×26239285² = 1377000154622450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5464 + ... + 9073.

It is an arithmetic number, because the mean of its divisors is an integer number (2769489).

Almost surely, 2^26239285 is an apocalyptic number.

It is an amenable number.

26239285 is a deficient number, since it is larger than the sum of its proper divisors (6994583).

26239285 is a wasteful number, since it uses less digits than its factorization.

26239285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14580 (or 14561 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 26239285 is about 5122.4295993210. The cubic root of 26239285 is about 297.1556545960.

The spelling of 26239285 in words is "twenty-six million, two hundred thirty-nine thousand, two hundred eighty-five".