40444000320 has 56 divisors (see below), whose sum is σ = 128409704064. Its totient is φ = 10785066496.

The previous prime is 40444000313. The next prime is 40444000369. The reversal of 40444000320 is 2300044404.

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, 21063624 + ... + 21065543.

Almost surely, 2^40444000320 is an apocalyptic number.

40444000320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40444000320 is an abundant number, since it is smaller than the sum of its proper divisors (87965703744).

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

40444000320 is a wasteful number, since it uses less digits than its factorization.

40444000320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42129187 (or 42129177 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 40444000320 its reverse (2300044404), we get a palindrome (42744044724).

The spelling of 40444000320 in words is "forty billion, four hundred forty-four million, three hundred twenty", and thus it is an aban number.