400400323230322 has 4 divisors (see below), whose sum is σ = 600600484845486. Its totient is φ = 200200161615160.

The previous prime is 400400323230283. The next prime is 400400323230353. The reversal of 400400323230322 is 223032323004004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 303632750853721 + 96767572376601 = 17425061^2 + 9837051^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100100080807579 + ... + 100100080807582.

Almost surely, 2^{400400323230322} is an apocalyptic number.

400400323230322 is a deficient number, since it is larger than the sum of its proper divisors (200200161615164).

400400323230322 is a wasteful number, since it uses less digits than its factorization.

400400323230322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200200161615163.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 400400323230322 its reverse (223032323004004), we get a palindrome (623432646234326).

The spelling of 400400323230322 in words is "four hundred trillion, four hundred billion, three hundred twenty-three million, two hundred thirty thousand, three hundred twenty-two".