26394019 has 2 divisors, whose sum is σ = 26394020. Its totient is φ = 26394018.

The previous prime is 26394001. The next prime is 26394073. The reversal of 26394019 is 91049362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26394019 - 2¹⁹ = 25869731 is a prime.

It is a super-2 number, since 2×26394019² = 1393288477944722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26394419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13197009 + 13197010.

It is an arithmetic number, because the mean of its divisors is an integer number (13197010).

Almost surely, 2^26394019 is an apocalyptic number.

26394019 is a deficient number, since it is larger than the sum of its proper divisors (1).

26394019 is an equidigital number, since it uses as much as digits as its factorization.

26394019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 26394019 is about 5137.5109732243. The cubic root of 26394019 is about 297.7386226651.

The spelling of 26394019 in words is "twenty-six million, three hundred ninety-four thousand, nineteen".