1830749 has 2 divisors, whose sum is σ = 1830750. Its totient is φ = 1830748.

The previous prime is 1830739. The next prime is 1830757. The reversal of 1830749 is 9470381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1708249 + 122500 = 1307^2 + 350^2 .

It is a cyclic number.

It is not a de Polignac number, because 1830749 - 2⁴ = 1830733 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1830739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915374 + 915375.

It is an arithmetic number, because the mean of its divisors is an integer number (915375).

2^1830749 is an apocalyptic number.

It is an amenable number.

1830749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1830749 is an equidigital number, since it uses as much as digits as its factorization.

1830749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1830749 is about 1353.0517358919. The cubic root of 1830749 is about 122.3328053658.

The spelling of 1830749 in words is "one million, eight hundred thirty thousand, seven hundred forty-nine".