1830826901 has 4 divisors (see below), whose sum is σ = 1833873804. Its totient is φ = 1827780000.

The previous prime is 1830826891. The next prime is 1830826913. The reversal of 1830826901 is 1096280381.

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 898440676 + 932386225 = 29974^2 + 30535^2 .

It is a cyclic number.

It is not a de Polignac number, because 1830826901 - 2²² = 1826632597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1830826961) 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, 1522550 + ... + 1523751.

It is an arithmetic number, because the mean of its divisors is an integer number (458468451).

Almost surely, 2^1830826901 is an apocalyptic number.

It is an amenable number.

1830826901 is a deficient number, since it is larger than the sum of its proper divisors (3046903).

1830826901 is an equidigital number, since it uses as much as digits as its factorization.

1830826901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046902.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 1830826901 is about 42788.1630944821. The cubic root of 1830826901 is about 1223.3454048673.

The spelling of 1830826901 in words is "one billion, eight hundred thirty million, eight hundred twenty-six thousand, nine hundred one".