44649145 has 16 divisors (see below), whose sum is σ = 58222080. Its totient is φ = 32745600.

The previous prime is 44649139. The next prime is 44649149. The reversal of 44649145 is 54194644.

44649145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44649145 - 2⁵ = 44649113 is a prime.

It is a super-2 number, since 2×44649145² = 3987092298462050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44649149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4636 + ... + 10525.

It is an arithmetic number, because the mean of its divisors is an integer number (3638880).

Almost surely, 2^44649145 is an apocalyptic number.

It is an amenable number.

44649145 is a deficient number, since it is larger than the sum of its proper divisors (13572935).

44649145 is a wasteful number, since it uses less digits than its factorization.

44649145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15216.

The product of its digits is 69120, while the sum is 37.

The square root of 44649145 is about 6682.0015713856. The cubic root of 44649145 is about 354.7625072920.

The spelling of 44649145 in words is "forty-four million, six hundred forty-nine thousand, one hundred forty-five".