400032322 has 32 divisors (see below), whose sum is σ = 637528320. Its totient is φ = 187944960.

The previous prime is 400032239. The next prime is 400032323. The reversal of 400032322 is 223230004.

It is a junction number, because it is equal to n+sod(n) for n = 400032296 and 400032305.

It is not an unprimeable number, because it can be changed into a prime (400032323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700297 + ... + 700867.

It is an arithmetic number, because the mean of its divisors is an integer number (19922760).

Almost surely, 2^400032322 is an apocalyptic number.

400032322 is a deficient number, since it is larger than the sum of its proper divisors (237495998).

400032322 is a wasteful number, since it uses less digits than its factorization.

400032322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 400032322 is about 20000.8080336770. The cubic root of 400032322 is about 736.8261450712.

Adding to 400032322 its reverse (223230004), we get a palindrome (623262326).

The spelling of 400032322 in words is "four hundred million, thirty-two thousand, three hundred twenty-two".