20423441000 has 32 divisors (see below), whose sum is σ = 47790854280. Its totient is φ = 8169376000.

The previous prime is 20423440997. The next prime is 20423441117. The reversal of 20423441000 is 14432402.

It can be written as a sum of positive squares in 4 ways, for example, as 6557436484 + 13866004516 = 80978^2 + 117754^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10210721 + ... + 10212720.

Almost surely, 2^20423441000 is an apocalyptic number.

20423441000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20423441000 is an abundant number, since it is smaller than the sum of its proper divisors (27367413280).

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

20423441000 is a wasteful number, since it uses less digits than its factorization.

20423441000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20423462 (or 20423448 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20423441000 its reverse (14432402), we get a palindrome (20437873402).

The spelling of 20423441000 in words is "twenty billion, four hundred twenty-three million, four hundred forty-one thousand".