26388242 has 4 divisors (see below), whose sum is σ = 39582366. Its totient is φ = 13194120.

The previous prime is 26388227. The next prime is 26388251. The reversal of 26388242 is 24288362.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23629321 + 2758921 = 4861^2 + 1661^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6597059 + ... + 6597062.

Almost surely, 2^26388242 is an apocalyptic number.

26388242 is a deficient number, since it is larger than the sum of its proper divisors (13194124).

26388242 is a wasteful number, since it uses less digits than its factorization.

26388242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13194123.

The product of its digits is 36864, while the sum is 35.

The square root of 26388242 is about 5136.9487052140. The cubic root of 26388242 is about 297.7168985322.

The spelling of 26388242 in words is "twenty-six million, three hundred eighty-eight thousand, two hundred forty-two".