400464644460 has 24 divisors (see below), whose sum is σ = 1121301004656. Its totient is φ = 106790571840.

The previous prime is 400464644449. The next prime is 400464644501. The reversal of 400464644460 is 64446464004.

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, 3337205311 + ... + 3337205430.

It is an arithmetic number, because the mean of its divisors is an integer number (46720875194).

Almost surely, 2^400464644460 is an apocalyptic number.

It is an amenable number.

400464644460 is an abundant number, since it is smaller than the sum of its proper divisors (720836360196).

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

400464644460 is a wasteful number, since it uses less digits than its factorization.

400464644460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6674410753 (or 6674410751 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 42.

The spelling of 400464644460 in words is "four hundred billion, four hundred sixty-four million, six hundred forty-four thousand, four hundred sixty".