40244221312 has 64 divisors (see below), whose sum is σ = 84930055200. Its totient is φ = 18929557504.

The previous prime is 40244221291. The next prime is 40244221333. The reversal of 40244221312 is 21312244204.

It is an interprime number because it is at equal distance from previous prime (40244221291) and next prime (40244221333).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8090058 + ... + 8095030.

Almost surely, 2^40244221312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40244221312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42465027600).

40244221312 is an abundant number, since it is smaller than the sum of its proper divisors (44685833888).

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

40244221312 is a wasteful number, since it uses less digits than its factorization.

40244221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8723 (or 8711 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 40244221312 its reverse (21312244204), we get a palindrome (61556465516).

The spelling of 40244221312 in words is "forty billion, two hundred forty-four million, two hundred twenty-one thousand, three hundred twelve".