19820002 has 16 divisors (see below), whose sum is σ = 31464000. Its totient is φ = 9337680.

The previous prime is 19819999. The next prime is 19820023. The reversal of 19820002 is 20002891.

It is a plaindrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6252 + ... + 8872.

It is an arithmetic number, because the mean of its divisors is an integer number (1966500).

Almost surely, 2^19820002 is an apocalyptic number.

19820002 is a deficient number, since it is larger than the sum of its proper divisors (11643998).

19820002 is a wasteful number, since it uses less digits than its factorization.

19820002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 19820002 is about 4451.9660825303. The cubic root of 19820002 is about 270.6249902128.

Adding to 19820002 its reverse (20002891), we get a palindrome (39822893).

The spelling of 19820002 in words is "nineteen million, eight hundred twenty thousand, two".