44942809 has 4 divisors (see below), whose sum is σ = 47308240. Its totient is φ = 42577380.

The previous prime is 44942803. The next prime is 44942813. The reversal of 44942809 is 90824944.

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 44942809 - 2¹⁷ = 44811737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44942803) 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, 1182687 + ... + 1182724.

It is an arithmetic number, because the mean of its divisors is an integer number (11827060).

Almost surely, 2^44942809 is an apocalyptic number.

It is an amenable number.

44942809 is a deficient number, since it is larger than the sum of its proper divisors (2365431).

44942809 is a wasteful number, since it uses less digits than its factorization.

44942809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365430.

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

The square root of 44942809 is about 6703.9398117823. The cubic root of 44942809 is about 355.5385833949.

The spelling of 44942809 in words is "forty-four million, nine hundred forty-two thousand, eight hundred nine".