1339634609 has 8 divisors (see below), whose sum is σ = 1411722432. Its totient is φ = 1268700400.

The previous prime is 1339634591. The next prime is 1339634683. The reversal of 1339634609 is 9064369331.

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-1339634609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1339634609.

It is not an unprimeable number, because it can be changed into a prime (1339631609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286019 + ... + 290664.

It is an arithmetic number, because the mean of its divisors is an integer number (176465304).

Almost surely, 2^1339634609 is an apocalyptic number.

It is an amenable number.

1339634609 is a deficient number, since it is larger than the sum of its proper divisors (72087823).

1339634609 is a wasteful number, since it uses less digits than its factorization.

1339634609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576807.

The product of its (nonzero) digits is 314928, while the sum is 44.

The square root of 1339634609 is about 36601.0192344421. The cubic root of 1339634609 is about 1102.3735548790.

The spelling of 1339634609 in words is "one billion, three hundred thirty-nine million, six hundred thirty-four thousand, six hundred nine".