19220002 has 16 divisors (see below), whose sum is σ = 29464632. Its totient is φ = 9400320.

The previous prime is 19219999. The next prime is 19220009. The reversal of 19220002 is 20002291.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10699441 + 8520561 = 3271^2 + 2919^2 .

It is not an unprimeable number, because it can be changed into a prime (19220009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31048 + ... + 31660.

Almost surely, 2^19220002 is an apocalyptic number.

19220002 is a deficient number, since it is larger than the sum of its proper divisors (10244630).

19220002 is a wasteful number, since it uses less digits than its factorization.

19220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 19220002 is about 4384.0622714556. The cubic root of 19220002 is about 267.8661338578.

Adding to 19220002 its reverse (20002291), we get a palindrome (39222293).

The spelling of 19220002 in words is "nineteen million, two hundred twenty thousand, two".