26398244 has 6 divisors (see below), whose sum is σ = 46196934. Its totient is φ = 13199120.

The previous prime is 26398241. The next prime is 26398249. The reversal of 26398244 is 44289362.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25623844 + 774400 = 5062^2 + 880^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26398198 and 26398207.

It is not an unprimeable number, because it can be changed into a prime (26398241) by changing a digit.

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, 3299777 + ... + 3299784.

It is an arithmetic number, because the mean of its divisors is an integer number (7699489).

Almost surely, 2^26398244 is an apocalyptic number.

It is an amenable number.

26398244 is a deficient number, since it is larger than the sum of its proper divisors (19798690).

26398244 is a wasteful number, since it uses less digits than its factorization.

26398244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6599565 (or 6599563 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 26398244 is about 5137.9221481062. The cubic root of 26398244 is about 297.7545085693.

The spelling of 26398244 in words is "twenty-six million, three hundred ninety-eight thousand, two hundred forty-four".