26042393 has 6 divisors (see below), whose sum is σ = 28199934. Its totient is φ = 24038976.

The previous prime is 26042381. The next prime is 26042411. The reversal of 26042393 is 39324062.

It can be written as a sum of positive squares in 3 ways, for example, as 3356224 + 22686169 = 1832^2 + 4763^2 .

It is not a de Polignac number, because 26042393 - 2¹⁴ = 26026009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26042333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76880 + ... + 77217.

It is an arithmetic number, because the mean of its divisors is an integer number (4699989).

Almost surely, 2^26042393 is an apocalyptic number.

It is an amenable number.

26042393 is a deficient number, since it is larger than the sum of its proper divisors (2157541).

26042393 is a wasteful number, since it uses less digits than its factorization.

26042393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154123 (or 154110 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 26042393 is about 5103.1747961441. The cubic root of 26042393 is about 296.4105310714.

The spelling of 26042393 in words is "twenty-six million, forty-two thousand, three hundred ninety-three".