400453442344 has 32 divisors (see below), whose sum is σ = 754725600000. Its totient is φ = 199193556672.

The previous prime is 400453442321. The next prime is 400453442353. The reversal of 400453442344 is 443244354004.

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, 17180362 + ... + 17203654.

It is an arithmetic number, because the mean of its divisors is an integer number (23585175000).

Almost surely, 2^400453442344 is an apocalyptic number.

It is an amenable number.

400453442344 is a deficient number, since it is larger than the sum of its proper divisors (354272157656).

400453442344 is a wasteful number, since it uses less digits than its factorization.

400453442344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34297 (or 34293 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 37.

Adding to 400453442344 its reverse (443244354004), we get a palindrome (843697796348).

The spelling of 400453442344 in words is "four hundred billion, four hundred fifty-three million, four hundred forty-two thousand, three hundred forty-four".