400003544004 has 24 divisors (see below), whose sum is σ = 933393481440. Its totient is φ = 133327103424.

The previous prime is 400003543993. The next prime is 400003544011. The reversal of 400003544004 is 400445300004.

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 in 7 ways as a sum of consecutive naturals, for example, 699294 + ... + 1135349.

It is an arithmetic number, because the mean of its divisors is an integer number (38891395060).

Almost surely, 2^400003544004 is an apocalyptic number.

It is an amenable number.

400003544004 is an abundant number, since it is smaller than the sum of its proper divisors (533389937436).

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

400003544004 is a wasteful number, since it uses less digits than its factorization.

400003544004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852819 (or 1852817 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 400003544004 its reverse (400445300004), we get a palindrome (800448844008).

The spelling of 400003544004 in words is "four hundred billion, three million, five hundred forty-four thousand, four".