44099129 has 4 divisors (see below), whose sum is σ = 44196084. Its totient is φ = 44002176.

The previous prime is 44099117. The next prime is 44099131. The reversal of 44099129 is 92199044.

It is a happy number.

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 18292729 + 25806400 = 4277^2 + 5080^2 .

It is a cyclic number.

It is not a de Polignac number, because 44099129 - 2¹² = 44095033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44099092 and 44099101.

It is not an unprimeable number, because it can be changed into a prime (44099179) 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, 47792 + ... + 48705.

It is an arithmetic number, because the mean of its divisors is an integer number (11049021).

Almost surely, 2^44099129 is an apocalyptic number.

It is an amenable number.

44099129 is a deficient number, since it is larger than the sum of its proper divisors (96955).

44099129 is an equidigital number, since it uses as much as digits as its factorization.

44099129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96954.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 44099129 is about 6640.7175064145. The cubic root of 44099129 is about 353.2997558179.

The spelling of 44099129 in words is "forty-four million, ninety-nine thousand, one hundred twenty-nine".