26490026 has 4 divisors (see below), whose sum is σ = 39735042. Its totient is φ = 13245012.

The previous prime is 26490019. The next prime is 26490053. The reversal of 26490026 is 62009462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62009462 = 2 ⋅31004731.

It can be written as a sum of positive squares in only one way, i.e., 26368225 + 121801 = 5135^2 + 349^2 .

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, 6622505 + ... + 6622508.

Almost surely, 2^26490026 is an apocalyptic number.

26490026 is a deficient number, since it is larger than the sum of its proper divisors (13245016).

26490026 is a wasteful number, since it uses less digits than its factorization.

26490026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13245015.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 26490026 is about 5146.8462188023. The cubic root of 26490026 is about 298.0991892385.

Adding to 26490026 its reverse (62009462), we get a palindrome (88499488).

The spelling of 26490026 in words is "twenty-six million, four hundred ninety thousand, twenty-six".