1989200002 has 8 divisors (see below), whose sum is σ = 3080051712. Its totient is φ = 962516100.

The previous prime is 1989199997. The next prime is 1989200047. The reversal of 1989200002 is 2000029891.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 16041874 + ... + 16041997.

It is an arithmetic number, because the mean of its divisors is an integer number (385006464).

Almost surely, 2^1989200002 is an apocalyptic number.

1989200002 is a deficient number, since it is larger than the sum of its proper divisors (1090851710).

1989200002 is a wasteful number, since it uses less digits than its factorization.

1989200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32083904.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1989200002 is about 44600.4484506602. The cubic root of 1989200002 is about 1257.6490979917.

Adding to 1989200002 its reverse (2000029891), we get a palindrome (3989229893).

The spelling of 1989200002 in words is "one billion, nine hundred eighty-nine million, two hundred thousand, two".