1790880265 has 4 divisors (see below), whose sum is σ = 2149056324. Its totient is φ = 1432704208.

The previous prime is 1790880263. The next prime is 1790880269. The reversal of 1790880265 is 5620880971.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 201980944 + 1588899321 = 14212^2 + 39861^2 .

It is a cyclic number.

It is not a de Polignac number, because 1790880265 - 2¹ = 1790880263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1790880263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179088022 + ... + 179088031.

It is an arithmetic number, because the mean of its divisors is an integer number (537264081).

Almost surely, 2^1790880265 is an apocalyptic number.

It is an amenable number.

1790880265 is a deficient number, since it is larger than the sum of its proper divisors (358176059).

1790880265 is an equidigital number, since it uses as much as digits as its factorization.

1790880265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358176058.

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 1790880265 is about 42318.7932838355. The cubic root of 1790880265 is about 1214.3825468306.

The spelling of 1790880265 in words is "one billion, seven hundred ninety million, eight hundred eighty thousand, two hundred sixty-five".