26440451 has 2 divisors, whose sum is σ = 26440452. Its totient is φ = 26440450.

The previous prime is 26440439. The next prime is 26440483. The reversal of 26440451 is 15404462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26440451 - 2¹⁴ = 26424067 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26440451.

It is not a weakly prime, because it can be changed into another prime (26440651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13220225 + 13220226.

It is an arithmetic number, because the mean of its divisors is an integer number (13220226).

Almost surely, 2^26440451 is an apocalyptic number.

26440451 is a deficient number, since it is larger than the sum of its proper divisors (1).

26440451 is an equidigital number, since it uses as much as digits as its factorization.

26440451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 26440451 is about 5142.0279073533. The cubic root of 26440451 is about 297.9131129661.

The spelling of 26440451 in words is "twenty-six million, four hundred forty thousand, four hundred fifty-one".