1802449 has 4 divisors (see below), whose sum is σ = 1966320. Its totient is φ = 1638580.

The previous prime is 1802419. The next prime is 1802491. The reversal of 1802449 is 9442081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1802449 - 2¹¹ = 1800401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1802419) 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, 81919 + ... + 81940.

It is an arithmetic number, because the mean of its divisors is an integer number (491580).

2^1802449 is an apocalyptic number.

It is an amenable number.

1802449 is a deficient number, since it is larger than the sum of its proper divisors (163871).

1802449 is a wasteful number, since it uses less digits than its factorization.

1802449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163870.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1802449 is about 1342.5531646829. The cubic root of 1802449 is about 121.6991827355.

The spelling of 1802449 in words is "one million, eight hundred two thousand, four hundred forty-nine".