1340553343 has 32 divisors (see below), whose sum is σ = 1494484992. Its totient is φ = 1197235200.

The previous prime is 1340553329. The next prime is 1340553349. The reversal of 1340553343 is 3433550431.

It is not a de Polignac number, because 1340553343 - 2²¹ = 1338456191 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 (1340553349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5097030 + ... + 5097292.

It is an arithmetic number, because the mean of its divisors is an integer number (46702656).

Almost surely, 2^1340553343 is an apocalyptic number.

1340553343 is a deficient number, since it is larger than the sum of its proper divisors (153931649).

1340553343 is a wasteful number, since it uses less digits than its factorization.

1340553343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495.

The product of its (nonzero) digits is 32400, while the sum is 31.

The square root of 1340553343 is about 36613.5677447582. The cubic root of 1340553343 is about 1102.6255033383.

The spelling of 1340553343 in words is "one billion, three hundred forty million, five hundred fifty-three thousand, three hundred forty-three".