400552510112 has 24 divisors (see below), whose sum is σ = 801515426292. Its totient is φ = 196993036800.

The previous prime is 400552510087. The next prime is 400552510123. The reversal of 400552510112 is 211015255004.

It can be written as a sum of positive squares in 2 ways, for example, as 351748631056 + 48803879056 = 593084^2 + 220916^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102598589 + ... + 102602492.

Almost surely, 2^400552510112 is an apocalyptic number.

It is an amenable number.

400552510112 is an abundant number, since it is smaller than the sum of its proper divisors (400962916180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400552510112 is a wasteful number, since it uses less digits than its factorization.

400552510112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205201152 (or 205201144 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 400552510112 its reverse (211015255004), we get a palindrome (611567765116).

The spelling of 400552510112 in words is "four hundred billion, five hundred fifty-two million, five hundred ten thousand, one hundred twelve".