40244024440 has 16 divisors (see below), whose sum is σ = 90549055080. Its totient is φ = 16097609760.

The previous prime is 40244024437. The next prime is 40244024461. The reversal of 40244024440 is 4442044204.

It is a junction number, because it is equal to n+sod(n) for n = 40244024399 and 40244024408.

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 3 ways as a sum of consecutive naturals, for example, 503050266 + ... + 503050345.

Almost surely, 2^40244024440 is an apocalyptic number.

40244024440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40244024440 is an abundant number, since it is smaller than the sum of its proper divisors (50305030640).

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

40244024440 is a wasteful number, since it uses less digits than its factorization.

40244024440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006100622 (or 1006100618 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40244024440 its reverse (4442044204), we get a palindrome (44686068644).

The spelling of 40244024440 in words is "forty billion, two hundred forty-four million, twenty-four thousand, four hundred forty".