400133224 has 16 divisors (see below), whose sum is σ = 751345920. Its totient is φ = 199774320.

The previous prime is 400133219. The next prime is 400133249. The reversal of 400133224 is 422331004.

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, 30664 + ... + 41719.

It is an arithmetic number, because the mean of its divisors is an integer number (46959120).

Almost surely, 2^400133224 is an apocalyptic number.

It is an amenable number.

400133224 is a deficient number, since it is larger than the sum of its proper divisors (351212696).

400133224 is a wasteful number, since it uses less digits than its factorization.

400133224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73080 (or 73076 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 400133224 is about 20003.3303227238. The cubic root of 400133224 is about 736.8880908837. Note that the first 3 decimals are identical.

Adding to 400133224 its reverse (422331004), we get a palindrome (822464228).

The spelling of 400133224 in words is "four hundred million, one hundred thirty-three thousand, two hundred twenty-four".