400433314431 has 4 divisors (see below), whose sum is σ = 533911085912. Its totient is φ = 266955542952.

The previous prime is 400433314417. The next prime is 400433314439. The reversal of 400433314431 is 134413334004.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 400433314431 - 2¹⁴ = 400433298047 is a prime.

It is a super-2 number, since 2×400433314431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400433314439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66738885736 + ... + 66738885741.

It is an arithmetic number, because the mean of its divisors is an integer number (133477771478).

Almost surely, 2^400433314431 is an apocalyptic number.

400433314431 is a deficient number, since it is larger than the sum of its proper divisors (133477771481).

400433314431 is a wasteful number, since it uses less digits than its factorization.

400433314431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133477771480.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 400433314431 its reverse (134413334004), we get a palindrome (534846648435).

The spelling of 400433314431 in words is "four hundred billion, four hundred thirty-three million, three hundred fourteen thousand, four hundred thirty-one".