400143453200 has 30 divisors (see below), whose sum is σ = 961344647274. Its totient is φ = 160057381120.

The previous prime is 400143453197. The next prime is 400143453253. The reversal of 400143453200 is 2354341004.

It can be written as a sum of positive squares in 3 ways, for example, as 51782416 + 400091670784 = 7196^2 + 632528^2 .

It is a super-2 number, since 2×400143453200² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400143453200.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500178917 + ... + 500179716.

Almost surely, 2^400143453200 is an apocalyptic number.

400143453200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400143453200 is an abundant number, since it is smaller than the sum of its proper divisors (561201194074).

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

400143453200 is a wasteful number, since it uses less digits than its factorization.

400143453200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000358651 (or 1000358640 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 400143453200 its reverse (2354341004), we get a palindrome (402497794204).

The spelling of 400143453200 in words is "four hundred billion, one hundred forty-three million, four hundred fifty-three thousand, two hundred".