26166442 has 8 divisors (see below), whose sum is σ = 39273156. Its totient is φ = 13075392.

The previous prime is 26166421. The next prime is 26166443. The reversal of 26166442 is 24466162.

It can be written as a sum of positive squares in 2 ways, for example, as 25492401 + 674041 = 5049^2 + 821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (26166443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2128 + ... + 7540.

Almost surely, 2^26166442 is an apocalyptic number.

26166442 is a deficient number, since it is larger than the sum of its proper divisors (13106714).

26166442 is a wasteful number, since it uses less digits than its factorization.

26166442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7832.

The product of its digits is 13824, while the sum is 31.

The square root of 26166442 is about 5115.3144575871. The cubic root of 26166442 is about 296.8804213525.

The spelling of 26166442 in words is "twenty-six million, one hundred sixty-six thousand, four hundred forty-two".