26420369 has 2 divisors, whose sum is σ = 26420370. Its totient is φ = 26420368.

The previous prime is 26420357. The next prime is 26420411. The reversal of 26420369 is 96302462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23571025 + 2849344 = 4855^2 + 1688^2 .

It is a cyclic number.

It is not a de Polignac number, because 26420369 - 2²⁰ = 25371793 is a prime.

It is a super-2 number, since 2×26420369² = 1396071796192322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26420269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13210184 + 13210185.

It is an arithmetic number, because the mean of its divisors is an integer number (13210185).

Almost surely, 2^26420369 is an apocalyptic number.

It is an amenable number.

26420369 is a deficient number, since it is larger than the sum of its proper divisors (1).

26420369 is an equidigital number, since it uses as much as digits as its factorization.

26420369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 26420369 is about 5140.0748049031. The cubic root of 26420369 is about 297.8376703999.

The spelling of 26420369 in words is "twenty-six million, four hundred twenty thousand, three hundred sixty-nine".