20002243998 has 32 divisors (see below), whose sum is σ = 44193692160. Its totient is φ = 5984559360.

The previous prime is 20002243957. The next prime is 20002243999. The reversal of 20002243998 is 89934220002.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002243999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1912915 + ... + 1923342.

It is an arithmetic number, because the mean of its divisors is an integer number (1381052880).

Almost surely, 2^20002243998 is an apocalyptic number.

20002243998 is an abundant number, since it is smaller than the sum of its proper divisors (24191448162).

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

20002243998 is a wasteful number, since it uses less digits than its factorization.

20002243998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836352.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 20002243998 in words is "twenty billion, two million, two hundred forty-three thousand, nine hundred ninety-eight".