44849809 has 9 divisors (see below), whose sum is σ = 46350801. Its totient is φ = 43396560.

The previous prime is 44849807. The next prime is 44849821. The reversal of 44849809 is 90894844.

It is a happy number.

The square root of 44849809 is 6697.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2235025 + 42614784 = 1495^2 + 6528^2 .

It is not a de Polignac number, because 44849809 - 2¹ = 44849807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44849807) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 247699 + ... + 247879.

It is an arithmetic number, because the mean of its divisors is an integer number (5150089).

Almost surely, 2^44849809 is an apocalyptic number.

44849809 is the 6697-th square number.

44849809 is the 3349-th centered octagonal number.

It is an amenable number.

44849809 is a deficient number, since it is larger than the sum of its proper divisors (1500992).

44849809 is an frugal number, since it uses more digits than its factorization.

44849809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The cubic root of 44849809 is about 355.2931757875.

Multiplying 44849809 by its product of nonzero digits (331776), we get a square (14880090230784 = 3857472²).

The spelling of 44849809 in words is "forty-four million, eight hundred forty-nine thousand, eight hundred nine".