44129979 has 12 divisors (see below), whose sum is σ = 64642032. Its totient is φ = 29005200.

The previous prime is 44129971. The next prime is 44129983. The reversal of 44129979 is 97992144.

It is a happy number.

It is not a de Polignac number, because 44129979 - 2³ = 44129971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44129971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33892 + ... + 35169.

It is an arithmetic number, because the mean of its divisors is an integer number (5386836).

Almost surely, 2^44129979 is an apocalyptic number.

44129979 is a deficient number, since it is larger than the sum of its proper divisors (20512053).

44129979 is a wasteful number, since it uses less digits than its factorization.

44129979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69138 (or 69135 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 44129979 is about 6643.0398914955. The cubic root of 44129979 is about 353.3821214423.

The spelling of 44129979 in words is "forty-four million, one hundred twenty-nine thousand, nine hundred seventy-nine".