19702002 has 16 divisors (see below), whose sum is σ = 39754080. Its totient is φ = 6508992.

The previous prime is 19701947. The next prime is 19702009. The reversal of 19702002 is 20020791.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19702002.

It is not an unprimeable number, because it can be changed into a prime (19702009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13852 + ... + 15207.

It is an arithmetic number, because the mean of its divisors is an integer number (2484630).

Almost surely, 2^19702002 is an apocalyptic number.

19702002 is an abundant number, since it is smaller than the sum of its proper divisors (20052078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19702002 is a wasteful number, since it uses less digits than its factorization.

19702002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29177.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 19702002 is about 4438.6937267624. The cubic root of 19702002 is about 270.0868582004.

Adding to 19702002 its reverse (20020791), we get a palindrome (39722793).

The spelling of 19702002 in words is "nineteen million, seven hundred two thousand, two".