44505640 has 32 divisors (see below), whose sum is σ = 101554560. Its totient is φ = 17550400.

The previous prime is 44505631. The next prime is 44505653. The reversal of 44505640 is 4650544.

It is a junction number, because it is equal to n+sod(n) for n = 44505599 and 44505608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4996 + ... + 10675.

It is an arithmetic number, because the mean of its divisors is an integer number (3173580).

Almost surely, 2^44505640 is an apocalyptic number.

44505640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44505640 is an abundant number, since it is smaller than the sum of its proper divisors (57048920).

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

44505640 is a wasteful number, since it uses less digits than its factorization.

44505640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15753 (or 15749 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 44505640 is about 6671.2547545421. The cubic root of 44505640 is about 354.3820234552.

It can be divided in two parts, 445056 and 40, that added together give a triangular number (445096 = T₉₄₃).

The spelling of 44505640 in words is "forty-four million, five hundred five thousand, six hundred forty".