400343413422 has 16 divisors (see below), whose sum is σ = 800791161552. Its totient is φ = 133430415360.

The previous prime is 400343413399. The next prime is 400343413433. The reversal of 400343413422 is 224314343004.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 400343413422.

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, 4297353 + ... + 4389524.

It is an arithmetic number, because the mean of its divisors is an integer number (50049447597).

Almost surely, 2^400343413422 is an apocalyptic number.

400343413422 is an abundant number, since it is smaller than the sum of its proper divisors (400447748130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400343413422 is a wasteful number, since it uses less digits than its factorization.

400343413422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8694563.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 400343413422 its reverse (224314343004), we get a palindrome (624657756426).

The spelling of 400343413422 in words is "four hundred billion, three hundred forty-three million, four hundred thirteen thousand, four hundred twenty-two".