400005134224 has 20 divisors (see below), whose sum is σ = 780142468480. Its totient is φ = 198678045600.

The previous prime is 400005134189. The next prime is 400005134293. The reversal of 400005134224 is 422431500004.

It is a happy number.

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, 82780104 + ... + 82784935.

It is an arithmetic number, because the mean of its divisors is an integer number (39007123424).

Almost surely, 2^400005134224 is an apocalyptic number.

It is an amenable number.

400005134224 is a deficient number, since it is larger than the sum of its proper divisors (380137334256).

400005134224 is a wasteful number, since it uses less digits than its factorization.

400005134224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165565198 (or 165565192 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 400005134224 its reverse (422431500004), we get a palindrome (822436634228).

The spelling of 400005134224 in words is "four hundred billion, five million, one hundred thirty-four thousand, two hundred twenty-four".