400423112244 has 36 divisors (see below), whose sum is σ = 1012294816260. Its totient is φ = 133459315200.

The previous prime is 400423112209. The next prime is 400423112251. The reversal of 400423112244 is 442211324004.

400423112244 is a `hidden beast` number, since 4 + 0 + 0 + 423 + 11 + 224 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53089689744 + 347333422500 = 230412^2 + 589350^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301407 + ... + 944294.

Almost surely, 2^400423112244 is an apocalyptic number.

It is an amenable number.

400423112244 is an abundant number, since it is smaller than the sum of its proper divisors (611871704016).

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

400423112244 is a wasteful number, since it uses less digits than its factorization.

400423112244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254640 (or 1254635 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 400423112244 its reverse (442211324004), we get a palindrome (842634436248).

The spelling of 400423112244 in words is "four hundred billion, four hundred twenty-three million, one hundred twelve thousand, two hundred forty-four".