400243433000 has 64 divisors (see below), whose sum is σ = 952443835200. Its totient is φ = 157383835200.

The previous prime is 400243432961. The next prime is 400243433033. The reversal of 400243433000 is 334342004.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3332894 + ... + 3450893.

It is an arithmetic number, because the mean of its divisors is an integer number (14881934925).

Almost surely, 2^400243433000 is an apocalyptic number.

400243433000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400243433000 is an abundant number, since it is smaller than the sum of its proper divisors (552200402200).

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

400243433000 is a wasteful number, since it uses less digits than its factorization.

400243433000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6783867 (or 6783853 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 400243433000 its reverse (334342004), we get a palindrome (400577775004).

The spelling of 400243433000 in words is "four hundred billion, two hundred forty-three million, four hundred thirty-three thousand".