44671139 has 4 divisors (see below), whose sum is σ = 44741256. Its totient is φ = 44601024.

The previous prime is 44671117. The next prime is 44671153. The reversal of 44671139 is 93117644.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44671139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44671099 and 44671108.

It is not an unprimeable number, because it can be changed into a prime (44671169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34094 + ... + 35379.

It is an arithmetic number, because the mean of its divisors is an integer number (11185314).

Almost surely, 2^44671139 is an apocalyptic number.

44671139 is a deficient number, since it is larger than the sum of its proper divisors (70117).

44671139 is an equidigital number, since it uses as much as digits as its factorization.

44671139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70116.

The product of its digits is 18144, while the sum is 35.

The square root of 44671139 is about 6683.6471331153. The cubic root of 44671139 is about 354.8207492864.

The spelling of 44671139 in words is "forty-four million, six hundred seventy-one thousand, one hundred thirty-nine".