44678645 has 12 divisors (see below), whose sum is σ = 58932300. Its totient is φ = 32493120.

The previous prime is 44678639. The next prime is 44678653. The reversal of 44678645 is 54687644.

It can be written as a sum of positive squares in 2 ways, for example, as 29170801 + 15507844 = 5401^2 + 3938^2 .

It is not a de Polignac number, because 44678645 - 2¹⁰ = 44677621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44678596 and 44678605.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 36320 + ... + 37529.

It is an arithmetic number, because the mean of its divisors is an integer number (4911025).

Almost surely, 2^44678645 is an apocalyptic number.

It is an amenable number.

44678645 is a deficient number, since it is larger than the sum of its proper divisors (14253655).

44678645 is a wasteful number, since it uses less digits than its factorization.

44678645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73876 (or 73865 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 44678645 is about 6684.2086292994. The cubic root of 44678645 is about 354.8406214413.

The spelling of 44678645 in words is "forty-four million, six hundred seventy-eight thousand, six hundred forty-five".