44200120040 has 16 divisors (see below), whose sum is σ = 99450270180. Its totient is φ = 17680048000.

The previous prime is 44200119989. The next prime is 44200120057. The reversal of 44200120040 is 4002100244.

It can be written as a sum of positive squares in 2 ways, for example, as 38307101284 + 5893018756 = 195722^2 + 76766^2 .

It is a super-2 number, since 2×44200120040² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552501461 + ... + 552501540.

Almost surely, 2^44200120040 is an apocalyptic number.

44200120040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44200120040 is an abundant number, since it is smaller than the sum of its proper divisors (55250150140).

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

44200120040 is a wasteful number, since it uses less digits than its factorization.

44200120040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105003012 (or 1105003008 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 44200120040 its reverse (4002100244), we get a palindrome (48202220284).

The spelling of 44200120040 in words is "forty-four billion, two hundred million, one hundred twenty thousand, forty".