20440441004 has 24 divisors (see below), whose sum is σ = 36262483488. Its totient is φ = 10080502400.

The previous prime is 20440440989. The next prime is 20440441019. The reversal of 20440441004 is 40014404402.

It is an interprime number because it is at equal distance from previous prime (20440440989) and next prime (20440441019).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10064 + ... + 202440.

It is an arithmetic number, because the mean of its divisors is an integer number (1510936812).

Almost surely, 2^20440441004 is an apocalyptic number.

It is an amenable number.

20440441004 is a deficient number, since it is larger than the sum of its proper divisors (15822042484).

20440441004 is a wasteful number, since it uses less digits than its factorization.

20440441004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192745 (or 192743 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 20440441004 its reverse (40014404402), we get a palindrome (60454845406).

The spelling of 20440441004 in words is "twenty billion, four hundred forty million, four hundred forty-one thousand, four".