44891745 has 16 divisors (see below), whose sum is σ = 74950272. Its totient is φ = 22901120.

The previous prime is 44891741. The next prime is 44891779. The reversal of 44891745 is 54719844.

It is not a de Polignac number, because 44891745 - 2² = 44891741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44891697 and 44891706.

It is not an unprimeable number, because it can be changed into a prime (44891741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64716 + ... + 65405.

It is an arithmetic number, because the mean of its divisors is an integer number (4684392).

Almost surely, 2^44891745 is an apocalyptic number.

It is an amenable number.

44891745 is a deficient number, since it is larger than the sum of its proper divisors (30058527).

44891745 is a wasteful number, since it uses less digits than its factorization.

44891745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130152.

The product of its digits is 161280, while the sum is 42.

The square root of 44891745 is about 6700.1302226151. The cubic root of 44891745 is about 355.4038781034.

The spelling of 44891745 in words is "forty-four million, eight hundred ninety-one thousand, seven hundred forty-five".