400423231433 has 4 divisors (see below), whose sum is σ = 406062995328. Its totient is φ = 394783467540.

The previous prime is 400423231381. The next prime is 400423231441. The reversal of 400423231433 is 334132324004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400423231433 - 2⁸ = 400423231177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400423231396 and 400423231405.

It is not an unprimeable number, because it can be changed into a prime (400423201433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2819881841 + ... + 2819881982.

It is an arithmetic number, because the mean of its divisors is an integer number (101515748832).

Almost surely, 2^400423231433 is an apocalyptic number.

It is an amenable number.

400423231433 is a deficient number, since it is larger than the sum of its proper divisors (5639763895).

400423231433 is an equidigital number, since it uses as much as digits as its factorization.

400423231433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5639763894.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 400423231433 its reverse (334132324004), we get a palindrome (734555555437).

The spelling of 400423231433 in words is "four hundred billion, four hundred twenty-three million, two hundred thirty-one thousand, four hundred thirty-three".