400420000004 has 6 divisors (see below), whose sum is σ = 700735000014. Its totient is φ = 200210000000.

The previous prime is 400419999997. The next prime is 400420000021. The reversal of 400420000004 is 400000024004.

It can be written as a sum of positive squares in only one way, i.e., 255904456900 + 144515543104 = 505870^2 + 380152^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50052499997 + ... + 50052500004.

It is an arithmetic number, because the mean of its divisors is an integer number (116789166669).

Almost surely, 2^400420000004 is an apocalyptic number.

It is an amenable number.

400420000004 is a deficient number, since it is larger than the sum of its proper divisors (300315000010).

400420000004 is a wasteful number, since it uses less digits than its factorization.

400420000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100105000005 (or 100105000003 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 400420000004 its reverse (400000024004), we get a palindrome (800420024008).

The spelling of 400420000004 in words is "four hundred billion, four hundred twenty million, four", and thus it is an aban number.