19929002 has 4 divisors (see below), whose sum is σ = 29893506. Its totient is φ = 9964500.

The previous prime is 19928999. The next prime is 19929031. The reversal of 19929002 is 20092991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15689521 + 4239481 = 3961^2 + 2059^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19929002.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4982249 + ... + 4982252.

Almost surely, 2^19929002 is an apocalyptic number.

19929002 is a deficient number, since it is larger than the sum of its proper divisors (9964504).

19929002 is an equidigital number, since it uses as much as digits as its factorization.

19929002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9964503.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 19929002 is about 4464.1910801398. The cubic root of 19929002 is about 271.1201837991.

The spelling of 19929002 in words is "nineteen million, nine hundred twenty-nine thousand, two".