1802002 has 8 divisors (see below), whose sum is σ = 2796300. Its totient is φ = 869904.

The previous prime is 1801997. The next prime is 1802029. The reversal of 1802002 is 2002081.

It can be written as a sum of positive squares in 2 ways, for example, as 1798281 + 3721 = 1341^2 + 61^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1802002² = 6494422416008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15477 + ... + 15592.

2^1802002 is an apocalyptic number.

1802002 is a deficient number, since it is larger than the sum of its proper divisors (994298).

1802002 is a wasteful number, since it uses less digits than its factorization.

1802002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31100.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1802002 is about 1342.3866805060. The cubic root of 1802002 is about 121.6891216034.

Adding to 1802002 its reverse (2002081), we get a palindrome (3804083).

The spelling of 1802002 in words is "one million, eight hundred two thousand, two".