400322343345 has 16 divisors (see below), whose sum is σ = 640632955392. Its totient is φ = 213466181120.

The previous prime is 400322343319. The next prime is 400322343359. The reversal of 400322343345 is 543343223004.

It is not a de Polignac number, because 400322343345 - 2⁷ = 400322343217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2356992 + ... + 2521121.

It is an arithmetic number, because the mean of its divisors is an integer number (40039559712).

Almost surely, 2^400322343345 is an apocalyptic number.

It is an amenable number.

400322343345 is a deficient number, since it is larger than the sum of its proper divisors (240310612047).

400322343345 is a wasteful number, since it uses less digits than its factorization.

400322343345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4883592.

The product of its (nonzero) digits is 103680, while the sum is 33.

Adding to 400322343345 its reverse (543343223004), we get a palindrome (943665566349).

The spelling of 400322343345 in words is "four hundred billion, three hundred twenty-two million, three hundred forty-three thousand, three hundred forty-five".