20400411004 has 12 divisors (see below), whose sum is σ = 35857992744. Its totient is φ = 10155270224.

The previous prime is 20400410999. The next prime is 20400411013. The reversal of 20400411004 is 40011400402.

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, 11232799 + ... + 11234614.

It is an arithmetic number, because the mean of its divisors is an integer number (2988166062).

Almost surely, 2^20400411004 is an apocalyptic number.

It is an amenable number.

20400411004 is a deficient number, since it is larger than the sum of its proper divisors (15457581740).

20400411004 is a wasteful number, since it uses less digits than its factorization.

20400411004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22467644 (or 22467642 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20400411004 its reverse (40011400402), we get a palindrome (60411811406).

The spelling of 20400411004 in words is "twenty billion, four hundred million, four hundred eleven thousand, four".