44906809 has 4 divisors (see below), whose sum is σ = 47548404. Its totient is φ = 42265216.

The previous prime is 44906803. The next prime is 44906831. The reversal of 44906809 is 90860944.

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 14137600 + 30769209 = 3760^2 + 5547^2 .

It is a cyclic number.

It is not a de Polignac number, because 44906809 - 2¹⁹ = 44382521 is a prime.

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 (44906803) 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, 1320772 + ... + 1320805.

It is an arithmetic number, because the mean of its divisors is an integer number (11887101).

Almost surely, 2^44906809 is an apocalyptic number.

It is an amenable number.

44906809 is a deficient number, since it is larger than the sum of its proper divisors (2641595).

44906809 is a wasteful number, since it uses less digits than its factorization.

44906809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641594.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 44906809 is about 6701.2542855797. The cubic root of 44906809 is about 355.4436270988.

The spelling of 44906809 in words is "forty-four million, nine hundred six thousand, eight hundred nine".