400240566448 has 10 divisors (see below), whose sum is σ = 775466097524. Its totient is φ = 200120283216.

The previous prime is 400240566437. The next prime is 400240566491. The reversal of 400240566448 is 844665042004.

It is a super-2 number, since 2×400240566448² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12507517686 + ... + 12507517717.

Almost surely, 2^400240566448 is an apocalyptic number.

It is an amenable number.

400240566448 is a deficient number, since it is larger than the sum of its proper divisors (375225531076).

400240566448 is a wasteful number, since it uses less digits than its factorization.

400240566448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25015035411 (or 25015035405 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 43.

The spelling of 400240566448 in words is "four hundred billion, two hundred forty million, five hundred sixty-six thousand, four hundred forty-eight".