400530531112 has 16 divisors (see below), whose sum is σ = 751710676500. Its totient is φ = 200074350720.

The previous prime is 400530531077. The next prime is 400530531127. The reversal of 400530531112 is 211135035004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 397119270276 + 3411260836 = 630174^2 + 58406^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23855439 + ... + 23872222.

Almost surely, 2^400530531112 is an apocalyptic number.

It is an amenable number.

400530531112 is a deficient number, since it is larger than the sum of its proper divisors (351180145388).

400530531112 is a wasteful number, since it uses less digits than its factorization.

400530531112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47728716 (or 47728712 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 400530531112 its reverse (211135035004), we get a palindrome (611665566116).

The spelling of 400530531112 in words is "four hundred billion, five hundred thirty million, five hundred thirty-one thousand, one hundred twelve".