400004504504 has 32 divisors (see below), whose sum is σ = 846404521200. Its totient is φ = 175550565120.

The previous prime is 400004504479. The next prime is 400004504527. The reversal of 400004504504 is 405405400004.

It is a super-3 number, since 3×400004504504³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

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, 78368237 + ... + 78373340.

Almost surely, 2^400004504504 is an apocalyptic number.

400004504504 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

400004504504 is an abundant number, since it is smaller than the sum of its proper divisors (446400016696).

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

400004504504 is a wasteful number, since it uses less digits than its factorization.

400004504504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156741623 (or 156741619 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

Adding to 400004504504 its reverse (405405400004), we get a palindrome (805409904508).

The spelling of 400004504504 in words is "four hundred billion, four million, five hundred four thousand, five hundred four".