400455343132 has 24 divisors (see below), whose sum is σ = 755680707936. Its totient is φ = 184586422848.

The previous prime is 400455343117. The next prime is 400455343153. The reversal of 400455343132 is 231343554004.

It is a happy number.

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, 4941088 + ... + 5021479.

It is an arithmetic number, because the mean of its divisors is an integer number (31486696164).

Almost surely, 2^400455343132 is an apocalyptic number.

It is an amenable number.

400455343132 is a deficient number, since it is larger than the sum of its proper divisors (355225364804).

400455343132 is a wasteful number, since it uses less digits than its factorization.

400455343132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9963357 (or 9963355 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 400455343132 its reverse (231343554004), we get a palindrome (631798897136).

The spelling of 400455343132 in words is "four hundred billion, four hundred fifty-five million, three hundred forty-three thousand, one hundred thirty-two".