20001802 has 8 divisors (see below), whose sum is σ = 30033216. Its totient is φ = 9990732.

The previous prime is 20001799. The next prime is 20001811. The reversal of 20001802 is 20810002.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2328 + ... + 6739.

It is an arithmetic number, because the mean of its divisors is an integer number (3754152).

Almost surely, 2^20001802 is an apocalyptic number.

20001802 is a deficient number, since it is larger than the sum of its proper divisors (10031414).

20001802 is a wasteful number, since it uses less digits than its factorization.

20001802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10172.

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

The square root of 20001802 is about 4472.3374201865. The cubic root of 20001802 is about 271.4499137156.

Adding to 20001802 its reverse (20810002), we get a palindrome (40811804).

The spelling of 20001802 in words is "twenty million, one thousand, eight hundred two".