20044400402404 has 48 divisors (see below), whose sum is σ = 42448678860672. Its totient is φ = 8084809953792.

The previous prime is 20044400402399. The next prime is 20044400402423. The reversal of 20044400402404 is 40420400444002.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 11132694 + ... + 12807250.

It is an arithmetic number, because the mean of its divisors is an integer number (884347476264).

Almost surely, 2^{20044400402404} is an apocalyptic number.

It is an amenable number.

20044400402404 is an abundant number, since it is smaller than the sum of its proper divisors (22404278458268).

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

20044400402404 is a wasteful number, since it uses less digits than its factorization.

20044400402404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699732 (or 1699730 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 20044400402404 its reverse (40420400444002), we get a palindrome (60464800846406).

The spelling of 20044400402404 in words is "twenty trillion, forty-four billion, four hundred million, four hundred two thousand, four hundred four".