44849209 has 4 divisors (see below), whose sum is σ = 45480960. Its totient is φ = 44217460.

The previous prime is 44849201. The next prime is 44849221. The reversal of 44849209 is 90294844.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44849209 - 2³ = 44849201 is a prime.

It is a super-2 number, since 2×44849209² = 4022903095851362, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44849201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315769 + ... + 315910.

It is an arithmetic number, because the mean of its divisors is an integer number (11370240).

Almost surely, 2^44849209 is an apocalyptic number.

It is an amenable number.

44849209 is a deficient number, since it is larger than the sum of its proper divisors (631751).

44849209 is an equidigital number, since it uses as much as digits as its factorization.

44849209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631750.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 44849209 is about 6696.9552036728. The cubic root of 44849209 is about 355.2915914117.

The spelling of 44849209 in words is "forty-four million, eight hundred forty-nine thousand, two hundred nine".