44400361640 has 16 divisors (see below), whose sum is σ = 99900813780. Its totient is φ = 17760144640.

The previous prime is 44400361633. The next prime is 44400361651. The reversal of 44400361640 is 4616300444.

It can be written as a sum of positive squares in 2 ways, for example, as 41494504804 + 2905856836 = 203702^2 + 53906^2 .

It is a super-3 number, since 3×44400361640³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 44400361597 and 44400361606.

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 3 ways as a sum of consecutive naturals, for example, 555004481 + ... + 555004560.

Almost surely, 2^44400361640 is an apocalyptic number.

44400361640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44400361640 is an abundant number, since it is smaller than the sum of its proper divisors (55500452140).

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

44400361640 is a wasteful number, since it uses less digits than its factorization.

44400361640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110009052 (or 1110009048 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 44400361640 in words is "forty-four billion, four hundred million, three hundred sixty-one thousand, six hundred forty".