1340839029 has 8 divisors (see below), whose sum is σ = 1829361952. Its totient is φ = 873104400.

The previous prime is 1340839009. The next prime is 1340839067. The reversal of 1340839029 is 9209380431.

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

It is not a de Polignac number, because 1340839029 - 2¹⁵ = 1340806261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340839009) 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, 5196922 + ... + 5197179.

It is an arithmetic number, because the mean of its divisors is an integer number (228670244).

Almost surely, 2^1340839029 is an apocalyptic number.

It is an amenable number.

1340839029 is a deficient number, since it is larger than the sum of its proper divisors (488522923).

1340839029 is a wasteful number, since it uses less digits than its factorization.

1340839029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10394147.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 1340839029 is about 36617.4689048820. The cubic root of 1340839029 is about 1102.7038248008.

The spelling of 1340839029 in words is "one billion, three hundred forty million, eight hundred thirty-nine thousand, twenty-nine".