40444829881 has 9 divisors (see below), whose sum is σ = 40954890469. Its totient is φ = 39941051836.

The previous prime is 40444829879. The next prime is 40444829927. The reversal of 40444829881 is 18892844404.

The square root of 40444829881 is 201109.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 40444829881 - 2¹ = 40444829879 is a prime.

It is a super-2 number, since 2×40444829881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40444829801) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 16690836 + ... + 16693258.

Almost surely, 2^40444829881 is an apocalyptic number.

40444829881 is the 201109-th square number.

40444829881 is the 100555-th centered octagonal number.

It is an amenable number.

40444829881 is a deficient number, since it is larger than the sum of its proper divisors (510060588).

40444829881 is an frugal number, since it uses more digits than its factorization.

40444829881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012 (or 2506 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 52.

The spelling of 40444829881 in words is "forty billion, four hundred forty-four million, eight hundred twenty-nine thousand, eight hundred eighty-one".