400632122 has 8 divisors (see below), whose sum is σ = 655579872. Its totient is φ = 182105500.

The previous prime is 400632109. The next prime is 400632151. The reversal of 400632122 is 221236004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 400632094 and 400632103.

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, 9105254 + ... + 9105297.

It is an arithmetic number, because the mean of its divisors is an integer number (81947484).

Almost surely, 2^400632122 is an apocalyptic number.

400632122 is a deficient number, since it is larger than the sum of its proper divisors (254947750).

400632122 is a wasteful number, since it uses less digits than its factorization.

400632122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18210564.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 400632122 is about 20015.7968115186. The cubic root of 400632122 is about 737.1942216813.

Adding to 400632122 its reverse (221236004), we get a palindrome (621868126).

The spelling of 400632122 in words is "four hundred million, six hundred thirty-two thousand, one hundred twenty-two".