1826459645 has 12 divisors (see below), whose sum is σ = 2313180540. Its totient is φ = 1384262784.

The previous prime is 1826459639. The next prime is 1826459653. The reversal of 1826459645 is 5469546281.

It can be written as a sum of positive squares in 2 ways, for example, as 628053721 + 1198405924 = 25061^2 + 34618^2 .

It is not a de Polignac number, because 1826459645 - 2⁴ = 1826459629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1826459593 and 1826459602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 504140 + ... + 507749.

It is an arithmetic number, because the mean of its divisors is an integer number (192765045).

Almost surely, 2^1826459645 is an apocalyptic number.

It is an amenable number.

1826459645 is a deficient number, since it is larger than the sum of its proper divisors (486720895).

1826459645 is a wasteful number, since it uses less digits than its factorization.

1826459645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011932 (or 1011913 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 50.

The square root of 1826459645 is about 42737.0991645432. The cubic root of 1826459645 is about 1222.3719073499.

The spelling of 1826459645 in words is "one billion, eight hundred twenty-six million, four hundred fifty-nine thousand, six hundred forty-five".