1340544589 has 8 divisors (see below), whose sum is σ = 1355349888. Its totient is φ = 1325812320.

The previous prime is 1340544587. The next prime is 1340544599. The reversal of 1340544589 is 9854450431.

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

It is a cyclic number.

It is not a de Polignac number, because 1340544589 - 2¹ = 1340544587 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 (1340544587) 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, 19074 + ... + 55180.

It is an arithmetic number, because the mean of its divisors is an integer number (169418736).

Almost surely, 2^1340544589 is an apocalyptic number.

It is an amenable number.

1340544589 is a deficient number, since it is larger than the sum of its proper divisors (14805299).

1340544589 is a wasteful number, since it uses less digits than its factorization.

1340544589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36515.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 1340544589 is about 36613.4481987152. The cubic root of 1340544589 is about 1102.6231032337.

The spelling of 1340544589 in words is "one billion, three hundred forty million, five hundred forty-four thousand, five hundred eighty-nine".