400422043412 has 24 divisors (see below), whose sum is σ = 707221358592. Its totient is φ = 198365724000.

The previous prime is 400422043397. The next prime is 400422043447. The reversal of 400422043412 is 214340224004.

It is a happy number.

It is a super-2 number, since 2×400422043412² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634139 + ... + 1096802.

It is an arithmetic number, because the mean of its divisors is an integer number (29467556608).

Almost surely, 2^400422043412 is an apocalyptic number.

It is an amenable number.

400422043412 is a deficient number, since it is larger than the sum of its proper divisors (306799315180).

400422043412 is a wasteful number, since it uses less digits than its factorization.

400422043412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731479 (or 1731477 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 400422043412 its reverse (214340224004), we get a palindrome (614762267416).

The spelling of 400422043412 in words is "four hundred billion, four hundred twenty-two million, forty-three thousand, four hundred twelve".