400500144433 has 4 divisors (see below), whose sum is σ = 400501456420. Its totient is φ = 400498832448.

The previous prime is 400500144431. The next prime is 400500144491. The reversal of 400500144433 is 334441005004.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 23021385984 + 377478758449 = 151728^2 + 614393^2 .

It is a cyclic number.

It is not a de Polignac number, because 400500144433 - 2¹ = 400500144431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400500144431) 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, 68941 + ... + 897637.

It is an arithmetic number, because the mean of its divisors is an integer number (100125364105).

Almost surely, 2^400500144433 is an apocalyptic number.

It is an amenable number.

400500144433 is a deficient number, since it is larger than the sum of its proper divisors (1311987).

400500144433 is an equidigital number, since it uses as much as digits as its factorization.

400500144433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311986.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 400500144433 its reverse (334441005004), we get a palindrome (734941149437).

The spelling of 400500144433 in words is "four hundred billion, five hundred million, one hundred forty-four thousand, four hundred thirty-three".