1830644 has 6 divisors (see below), whose sum is σ = 3203634. Its totient is φ = 915320.

The previous prime is 1830637. The next prime is 1830659. The reversal of 1830644 is 4460381.

It can be written as a sum of positive squares in only one way, i.e., 1392400 + 438244 = 1180^2 + 662^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228827 + ... + 228834.

It is an arithmetic number, because the mean of its divisors is an integer number (533939).

2^1830644 is an apocalyptic number.

It is an amenable number.

1830644 is a deficient number, since it is larger than the sum of its proper divisors (1372990).

1830644 is a wasteful number, since it uses less digits than its factorization.

1830644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457665 (or 457663 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1830644 is about 1353.0129341584. The cubic root of 1830644 is about 122.3304665799.

The spelling of 1830644 in words is "one million, eight hundred thirty thousand, six hundred forty-four".