400334000031 has 48 divisors (see below), whose sum is σ = 682345617408. Its totient is φ = 221331441600.

The previous prime is 400334000009. The next prime is 400334000069. The reversal of 400334000031 is 130000433004.

It is not a de Polignac number, because 400334000031 - 2¹⁹ = 400333475743 is a prime.

It is a super-2 number, since 2×400334000031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400333999968 and 400334000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400334000531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9327601 + ... + 9370421.

It is an arithmetic number, because the mean of its divisors is an integer number (14215533696).

Almost surely, 2^400334000031 is an apocalyptic number.

400334000031 is a deficient number, since it is larger than the sum of its proper divisors (282011617377).

400334000031 is a wasteful number, since it uses less digits than its factorization.

400334000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47652 (or 47649 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 400334000031 its reverse (130000433004), we get a palindrome (530334433035).

The spelling of 400334000031 in words is "four hundred billion, three hundred thirty-four million, thirty-one", and thus it is an aban number.