20400442424024 has 16 divisors (see below), whose sum is σ = 41193201048720. Its totient is φ = 9415588811040.

The previous prime is 20400442423993. The next prime is 20400442424107. The reversal of 20400442424024 is 42042424400402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98079050012 + ... + 98079050219.

It is an arithmetic number, because the mean of its divisors is an integer number (2574575065545).

Almost surely, 2^{20400442424024} is an apocalyptic number.

It is an amenable number.

20400442424024 is an abundant number, since it is smaller than the sum of its proper divisors (20792758624696).

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

20400442424024 is a wasteful number, since it uses less digits than its factorization.

20400442424024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196158100250 (or 196158100246 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 20400442424024 its reverse (42042424400402), we get a palindrome (62442866824426).

The spelling of 20400442424024 in words is "twenty trillion, four hundred billion, four hundred forty-two million, four hundred twenty-four thousand, twenty-four".