3820049 has 4 divisors (see below), whose sum is σ = 3840036. Its totient is φ = 3800064.

The previous prime is 3820043. The next prime is 3820051. The reversal of 3820049 is 9400283.

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 2016400 + 1803649 = 1420^2 + 1343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3820049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3820043) 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, 9704 + ... + 10089.

It is an arithmetic number, because the mean of its divisors is an integer number (960009).

Almost surely, 2^3820049 is an apocalyptic number.

It is an amenable number.

3820049 is a deficient number, since it is larger than the sum of its proper divisors (19987).

3820049 is a wasteful number, since it uses less digits than its factorization.

3820049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19986.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 3820049 is about 1954.4945638195. The cubic root of 3820049 is about 156.3230348698.

The spelling of 3820049 in words is "three million, eight hundred twenty thousand, forty-nine".