20003000442 has 16 divisors (see below), whose sum is σ = 40293815520. Its totient is φ = 6619697712.

The previous prime is 20003000429. The next prime is 20003000447. The reversal of 20003000442 is 24400030002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20003000447) 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, 11991373 + ... + 11993040.

It is an arithmetic number, because the mean of its divisors is an integer number (2518363470).

Almost surely, 2^20003000442 is an apocalyptic number.

20003000442 is an abundant number, since it is smaller than the sum of its proper divisors (20290815078).

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

20003000442 is a wasteful number, since it uses less digits than its factorization.

20003000442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23984557.

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 20003000442 its reverse (24400030002), we get a palindrome (44403030444).

The spelling of 20003000442 in words is "twenty billion, three million, four hundred forty-two", and thus it is an aban number.