400213020422 has 16 divisors (see below), whose sum is σ = 601183149120. Its totient is φ = 199818800808.

The previous prime is 400213020367. The next prime is 400213020433. The reversal of 400213020422 is 224020312004.

It is a junction number, because it is equal to n+sod(n) for n = 400213020394 and 400213020403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5088029 + ... + 5166087.

It is an arithmetic number, because the mean of its divisors is an integer number (37573946820).

Almost surely, 2^400213020422 is an apocalyptic number.

400213020422 is a deficient number, since it is larger than the sum of its proper divisors (200970128698).

400213020422 is a wasteful number, since it uses less digits than its factorization.

400213020422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81715.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 400213020422 its reverse (224020312004), we get a palindrome (624233332426).

The spelling of 400213020422 in words is "four hundred billion, two hundred thirteen million, twenty thousand, four hundred twenty-two".