2009629439 has 8 divisors (see below), whose sum is σ = 2097765600. Its totient is φ = 1921556736.

The previous prime is 2009629429. The next prime is 2009629459. The reversal of 2009629439 is 9349269002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2009629439 is a prime.

It is a super-2 number, since 2×2009629439² = 8077220964190909442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2009629439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009629429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55799 + ... + 84455.

It is an arithmetic number, because the mean of its divisors is an integer number (262220700).

Almost surely, 2^2009629439 is an apocalyptic number.

2009629439 is a deficient number, since it is larger than the sum of its proper divisors (88136161).

2009629439 is a wasteful number, since it uses less digits than its factorization.

2009629439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31729.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 2009629439 is about 44828.8906733147. The cubic root of 2009629439 is about 1261.9398688200.

The spelling of 2009629439 in words is "two billion, nine million, six hundred twenty-nine thousand, four hundred thirty-nine".