4020420400004 has 6 divisors (see below), whose sum is σ = 7035735700014. Its totient is φ = 2010210200000.

The previous prime is 4020420399979. The next prime is 4020420400021. The reversal of 4020420400004 is 4000040240204.

It can be written as a sum of positive squares in only one way, i.e., 4000440012100 + 19980387904 = 2000110^2 + 141352^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502552549997 + ... + 502552550004.

It is an arithmetic number, because the mean of its divisors is an integer number (1172622616669).

Almost surely, 2^{4020420400004} is an apocalyptic number.

It is an amenable number.

4020420400004 is a deficient number, since it is larger than the sum of its proper divisors (3015315300010).

4020420400004 is a wasteful number, since it uses less digits than its factorization.

4020420400004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005105100005 (or 1005105100003 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 4020420400004 its reverse (4000040240204), we get a palindrome (8020460640208).

It can be divided in two parts, 4020 and 420400004, that added together give a palindrome (420404024).

The spelling of 4020420400004 in words is "four trillion, twenty billion, four hundred twenty million, four hundred thousand, four".