20400112442404 has 24 divisors (see below), whose sum is σ = 35756764243200. Its totient is φ = 10183896162720.

The previous prime is 20400112442399. The next prime is 20400112442419. The reversal of 20400112442404 is 40424421100402.

It is a happy number.

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, 40319262 + ... + 40822090.

It is an arithmetic number, because the mean of its divisors is an integer number (1489865176800).

Almost surely, 2^{20400112442404} is an apocalyptic number.

It is an amenable number.

20400112442404 is a deficient number, since it is larger than the sum of its proper divisors (15356651800796).

20400112442404 is a wasteful number, since it uses less digits than its factorization.

20400112442404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518883 (or 518881 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 20400112442404 its reverse (40424421100402), we get a palindrome (60824533542806).

The spelling of 20400112442404 in words is "twenty trillion, four hundred billion, one hundred twelve million, four hundred forty-two thousand, four hundred four".