44978945 has 32 divisors (see below), whose sum is σ = 60963840. Its totient is φ = 31579840.

The previous prime is 44978933. The next prime is 44978963. The reversal of 44978945 is 54987944.

It is not a de Polignac number, because 44978945 - 2¹² = 44974849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44978893 and 44978902.

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 31 ways as a sum of consecutive naturals, for example, 269252 + ... + 269418.

It is an arithmetic number, because the mean of its divisors is an integer number (1905120).

Almost surely, 2^44978945 is an apocalyptic number.

It is an amenable number.

44978945 is a deficient number, since it is larger than the sum of its proper divisors (15984895).

44978945 is a wasteful number, since it uses less digits than its factorization.

44978945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325.

The product of its digits is 1451520, while the sum is 50.

The square root of 44978945 is about 6706.6344018442. The cubic root of 44978945 is about 355.6338474329.

The spelling of 44978945 in words is "forty-four million, nine hundred seventy-eight thousand, nine hundred forty-five".