44555540 has 12 divisors (see below), whose sum is σ = 93566676. Its totient is φ = 17822208.

The previous prime is 44555527. The next prime is 44555543. The reversal of 44555540 is 4555544.

44555540 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13060996 + 31494544 = 3614^2 + 5612^2 .

It is a super-2 number, since 2×44555540² = 3970392289383200, which contains 22 as substring.

44555540 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 44555497 and 44555506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44555543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113869 + ... + 1113908.

It is an arithmetic number, because the mean of its divisors is an integer number (7797223).

Almost surely, 2^44555540 is an apocalyptic number.

It is an amenable number.

44555540 is an abundant number, since it is smaller than the sum of its proper divisors (49011136).

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

44555540 is a wasteful number, since it uses less digits than its factorization.

44555540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227786 (or 2227784 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 44555540 is about 6674.9936329558. The cubic root of 44555540 is about 354.5144190952.

The spelling of 44555540 in words is "forty-four million, five hundred fifty-five thousand, five hundred forty".