26428718 has 4 divisors (see below), whose sum is σ = 39643080. Its totient is φ = 13214358.

The previous prime is 26428673. The next prime is 26428729. The reversal of 26428718 is 81782462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81782462 = 2 ⋅40891231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6607178 + ... + 6607181.

It is an arithmetic number, because the mean of its divisors is an integer number (9910770).

Almost surely, 2^26428718 is an apocalyptic number.

26428718 is a deficient number, since it is larger than the sum of its proper divisors (13214362).

26428718 is a wasteful number, since it uses less digits than its factorization.

26428718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13214361.

The product of its digits is 43008, while the sum is 38.

The square root of 26428718 is about 5140.8868884658. The cubic root of 26428718 is about 297.8690399444.

It can be divided in two parts, 264 and 28718, that added together give a palindrome (28982).

The spelling of 26428718 in words is "twenty-six million, four hundred twenty-eight thousand, seven hundred eighteen".