400320122 has 8 divisors (see below), whose sum is σ = 607715136. Its totient is φ = 197748412.

The previous prime is 400320113. The next prime is 400320157. The reversal of 400320122 is 221023004.

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 = 400320097 and 400320106.

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, 1205618 + ... + 1205949.

It is an arithmetic number, because the mean of its divisors is an integer number (75964392).

Almost surely, 2^400320122 is an apocalyptic number.

400320122 is a deficient number, since it is larger than the sum of its proper divisors (207395014).

400320122 is a wasteful number, since it uses less digits than its factorization.

400320122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411652.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 400320122 is about 20008.0014494202. The cubic root of 400320122 is about 737.0028039049.

Adding to 400320122 its reverse (221023004), we get a palindrome (621343126).

The spelling of 400320122 in words is "four hundred million, three hundred twenty thousand, one hundred twenty-two".