400224340434 has 16 divisors (see below), whose sum is σ = 800749973088. Its totient is φ = 133357898112.

The previous prime is 400224340433. The next prime is 400224340441. The reversal of 400224340434 is 434043422004.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400224340433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12536572 + ... + 12568455.

It is an arithmetic number, because the mean of its divisors is an integer number (50046873318).

Almost surely, 2^400224340434 is an apocalyptic number.

400224340434 is an abundant number, since it is smaller than the sum of its proper divisors (400525632654).

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

400224340434 is a wasteful number, since it uses less digits than its factorization.

400224340434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25107689.

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 400224340434 its reverse (434043422004), we get a palindrome (834267762438).

The spelling of 400224340434 in words is "four hundred billion, two hundred twenty-four million, three hundred forty thousand, four hundred thirty-four".