400324004430 has 32 divisors (see below), whose sum is σ = 1098031555584. Its totient is φ = 91502629536.

The previous prime is 400324004401. The next prime is 400324004449. The reversal of 400324004430 is 34400423004.

It is a happy number.

400324004430 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 400324004430.

It is a congruent 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, 953152182 + ... + 953152601.

It is an arithmetic number, because the mean of its divisors is an integer number (34313486112).

Almost surely, 2^400324004430 is an apocalyptic number.

400324004430 is an abundant number, since it is smaller than the sum of its proper divisors (697707551154).

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

400324004430 is a wasteful number, since it uses less digits than its factorization.

400324004430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906304800.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 400324004430 its reverse (34400423004), we get a palindrome (434724427434).

The spelling of 400324004430 in words is "four hundred billion, three hundred twenty-four million, four thousand, four hundred thirty".