40400002244 has 12 divisors (see below), whose sum is σ = 80800004544. Its totient is φ = 17314286664.

The previous prime is 40400002241. The next prime is 40400002273. The reversal of 40400002244 is 44220000404.

40400002244 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40400002241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721428584 + ... + 721428639.

It is an arithmetic number, because the mean of its divisors is an integer number (6733333712).

Almost surely, 2^40400002244 is an apocalyptic number.

It is an amenable number.

40400002244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40400002244 is a wasteful number, since it uses less digits than its factorization.

40400002244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442857234 (or 1442857232 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40400002244 its reverse (44220000404), we get a palindrome (84620002648).

The spelling of 40400002244 in words is "forty billion, four hundred million, two thousand, two hundred forty-four".