400211422 has 32 divisors (see below), whose sum is σ = 656722080. Its totient is φ = 181816320.

The previous prime is 400211411. The next prime is 400211429. The reversal of 400211422 is 224112004.

It is a junction number, because it is equal to n+sod(n) for n = 400211396 and 400211405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400211429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525522 + ... + 526282.

It is an arithmetic number, because the mean of its divisors is an integer number (20522565).

Almost surely, 2^400211422 is an apocalyptic number.

400211422 is a deficient number, since it is larger than the sum of its proper divisors (256510658).

400211422 is a wasteful number, since it uses less digits than its factorization.

400211422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 400211422 is about 20005.2848517585. The cubic root of 400211422 is about 736.9360910814.

Adding to 400211422 its reverse (224112004), we get a palindrome (624323426).

The spelling of 400211422 in words is "four hundred million, two hundred eleven thousand, four hundred twenty-two".