400073741448 has 32 divisors (see below), whose sum is σ = 1017136634400. Its totient is φ = 131097609728.

The previous prime is 400073741447. The next prime is 400073741467. The reversal of 400073741448 is 844147370004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (400073741447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141267561 + ... + 141270392.

It is an arithmetic number, because the mean of its divisors is an integer number (31785519825).

Almost surely, 2^400073741448 is an apocalyptic number.

It is an amenable number.

400073741448 is an abundant number, since it is smaller than the sum of its proper divisors (617062892952).

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

400073741448 is a wasteful number, since it uses less digits than its factorization.

400073741448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282538021 (or 282538017 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 42.

The spelling of 400073741448 in words is "four hundred billion, seventy-three million, seven hundred forty-one thousand, four hundred forty-eight".