20002239998 has 16 divisors (see below), whose sum is σ = 32317503120. Its totient is φ = 9230033856.

The previous prime is 20002239991. The next prime is 20002240051. The reversal of 20002239998 is 89993220002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002239991) 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, 69833 + ... + 211851.

It is an arithmetic number, because the mean of its divisors is an integer number (2019843945).

Almost surely, 2^20002239998 is an apocalyptic number.

20002239998 is a deficient number, since it is larger than the sum of its proper divisors (12315263122).

20002239998 is a wasteful number, since it uses less digits than its factorization.

20002239998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147451.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 20002239998 in words is "twenty billion, two million, two hundred thirty-nine thousand, nine hundred ninety-eight".