1830245 has 8 divisors (see below), whose sum is σ = 2204280. Its totient is φ = 1458880.

The previous prime is 1830223. The next prime is 1830253. The reversal of 1830245 is 5420381.

It can be written as a sum of positive squares in 4 ways, for example, as 106276 + 1723969 = 326^2 + 1313^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1830245 - 2⁶ = 1830181 is a prime.

It is an Ulam number.

It is a zygodrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 1830245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1475 + ... + 2415.

It is an arithmetic number, because the mean of its divisors is an integer number (275535).

2^1830245 is an apocalyptic number.

It is an amenable number.

1830245 is a deficient number, since it is larger than the sum of its proper divisors (374035).

1830245 is an equidigital number, since it uses as much as digits as its factorization.

1830245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1830245 is about 1352.8654774219. The cubic root of 1830245 is about 122.3215783775.

The spelling of 1830245 in words is "one million, eight hundred thirty thousand, two hundred forty-five".