2026285805 has 18 divisors (see below), whose sum is σ = 2497381674. Its totient is φ = 1578270400.

The previous prime is 2026285801. The next prime is 2026285813. The reversal of 2026285805 is 5085826202.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 116683204 + 1909602601 = 10802^2 + 43699^2 .

It is not a de Polignac number, because 2026285805 - 2² = 2026285801 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2026285801) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4126610 + ... + 4127100.

Almost surely, 2^2026285805 is an apocalyptic number.

It is an amenable number.

2026285805 is a deficient number, since it is larger than the sum of its proper divisors (471095869).

2026285805 is an frugal number, since it uses more digits than its factorization.

2026285805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 2026285805 is about 45014.2844550483. The cubic root of 2026285805 is about 1265.4167165900.

The spelling of 2026285805 in words is "two billion, twenty-six million, two hundred eighty-five thousand, eight hundred five".