44889745 has 4 divisors (see below), whose sum is σ = 53867700. Its totient is φ = 35911792.

The previous prime is 44889727. The next prime is 44889751. The reversal of 44889745 is 54798844.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8202496 + 36687249 = 2864^2 + 6057^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44889745 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4488970 + ... + 4488979.

It is an arithmetic number, because the mean of its divisors is an integer number (13466925).

Almost surely, 2^44889745 is an apocalyptic number.

It is an amenable number.

44889745 is a deficient number, since it is larger than the sum of its proper divisors (8977955).

44889745 is an equidigital number, since it uses as much as digits as its factorization.

44889745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8977954.

The product of its digits is 1290240, while the sum is 49.

The square root of 44889745 is about 6699.9809701222. The cubic root of 44889745 is about 355.3986000855.

Subtracting 44889745 from its reverse (54798844), we obtain a palindrome (9909099).

The spelling of 44889745 in words is "forty-four million, eight hundred eighty-nine thousand, seven hundred forty-five".