26457049 has 4 divisors (see below), whose sum is σ = 28013364. Its totient is φ = 24900736.

The previous prime is 26457047. The next prime is 26457089. The reversal of 26457049 is 94075462.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17264025 + 9193024 = 4155^2 + 3032^2 .

It is a cyclic number.

It is not a de Polignac number, because 26457049 - 2¹ = 26457047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26456999 and 26457017.

It is not an unprimeable number, because it can be changed into a prime (26457047) 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, 778132 + ... + 778165.

It is an arithmetic number, because the mean of its divisors is an integer number (7003341).

Almost surely, 2^26457049 is an apocalyptic number.

It is an amenable number.

26457049 is a deficient number, since it is larger than the sum of its proper divisors (1556315).

26457049 is a wasteful number, since it uses less digits than its factorization.

26457049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556314.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 26457049 is about 5143.6416088215. The cubic root of 26457049 is about 297.9754382711.

The spelling of 26457049 in words is "twenty-six million, four hundred fifty-seven thousand, forty-nine".