1802043 has 6 divisors (see below), whose sum is σ = 2602964. Its totient is φ = 1201356.

The previous prime is 1802039. The next prime is 1802057. The reversal of 1802043 is 3402081.

It is a happy number.

It is not a de Polignac number, because 1802043 - 2² = 1802039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1802083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100105 + ... + 100122.

2^1802043 is an apocalyptic number.

1802043 is a deficient number, since it is larger than the sum of its proper divisors (800921).

1802043 is a wasteful number, since it uses less digits than its factorization.

1802043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200233 (or 200230 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1802043 is about 1342.4019517268. The cubic root of 1802043 is about 121.6900445059.

The spelling of 1802043 in words is "one million, eight hundred two thousand, forty-three".