44009999 has 6 divisors (see below), whose sum is σ = 48374760. Its totient is φ = 40008980.

The previous prime is 44009963. The next prime is 44010073. The reversal of 44009999 is 99990044.

It is a happy number.

It is not a de Polignac number, because 44009999 - 2¹² = 44005903 is a prime.

It is a Duffinian number.

44009999 is a modest number, since divided by 9999 gives 4400 as remainder.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44009599) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181739 + ... + 181980.

It is an arithmetic number, because the mean of its divisors is an integer number (8062460).

Almost surely, 2^44009999 is an apocalyptic number.

44009999 is a deficient number, since it is larger than the sum of its proper divisors (4364761).

44009999 is a wasteful number, since it uses less digits than its factorization.

44009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363741 (or 363730 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 44009999 is about 6634.0032408795. The cubic root of 44009999 is about 353.0615738958.

The spelling of 44009999 in words is "forty-four million, nine thousand, nine hundred ninety-nine".