20045442002 has 32 divisors (see below), whose sum is σ = 32017489920. Its totient is φ = 9396475200.

The previous prime is 20045441987. The next prime is 20045442019. The reversal of 20045442002 is 20024454002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317252 + ... + 375152.

It is an arithmetic number, because the mean of its divisors is an integer number (1000546560).

Almost surely, 2^20045442002 is an apocalyptic number.

20045442002 is a deficient number, since it is larger than the sum of its proper divisors (11972047918).

20045442002 is a wasteful number, since it uses less digits than its factorization.

20045442002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58106.

The product of its (nonzero) digits is 2560, while the sum is 23.

Adding to 20045442002 its reverse (20024454002), we get a palindrome (40069896004).

The spelling of 20045442002 in words is "twenty billion, forty-five million, four hundred forty-two thousand, two".