400008849244 has 24 divisors (see below), whose sum is σ = 710934392448. Its totient is φ = 196888694640.

The previous prime is 400008849187. The next prime is 400008849257. The reversal of 400008849244 is 442948800004.

It is a self number, because there is not a number n which added to its sum of digits gives 400008849244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88954 + ... + 898849.

It is an arithmetic number, because the mean of its divisors is an integer number (29622266352).

Almost surely, 2^400008849244 is an apocalyptic number.

It is an amenable number.

400008849244 is a deficient number, since it is larger than the sum of its proper divisors (310925543204).

400008849244 is a wasteful number, since it uses less digits than its factorization.

400008849244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989385 (or 989383 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 43.

The spelling of 400008849244 in words is "four hundred billion, eight million, eight hundred forty-nine thousand, two hundred forty-four".