26402449 has 2 divisors, whose sum is σ = 26402450. Its totient is φ = 26402448.

The previous prime is 26402437. The next prime is 26402471. The reversal of 26402449 is 94420462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26337424 + 65025 = 5132^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 26402449 - 2⁵ = 26402417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26402449.

It is not a weakly prime, because it can be changed into another prime (26402249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13201224 + 13201225.

It is an arithmetic number, because the mean of its divisors is an integer number (13201225).

Almost surely, 2^26402449 is an apocalyptic number.

It is an amenable number.

26402449 is a deficient number, since it is larger than the sum of its proper divisors (1).

26402449 is an equidigital number, since it uses as much as digits as its factorization.

26402449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 26402449 is about 5138.3313439287. The cubic root of 26402449 is about 297.7703175909.

The spelling of 26402449 in words is "twenty-six million, four hundred two thousand, four hundred forty-nine".