1340330087 has 4 divisors (see below), whose sum is σ = 1340517240. Its totient is φ = 1340142936.

The previous prime is 1340330027. The next prime is 1340330111. The reversal of 1340330087 is 7800330431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7800330431 = 37561 ⋅207671.

It is a cyclic number.

It is not a de Polignac number, because 1340330087 - 2⁶ = 1340330023 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 (1340330027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82388 + ... + 97305.

It is an arithmetic number, because the mean of its divisors is an integer number (335129310).

Almost surely, 2^1340330087 is an apocalyptic number.

1340330087 is a deficient number, since it is larger than the sum of its proper divisors (187153).

1340330087 is an equidigital number, since it uses as much as digits as its factorization.

1340330087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187152.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1340330087 is about 36610.5188026611. The cubic root of 1340330087 is about 1102.5642894554.

The spelling of 1340330087 in words is "one billion, three hundred forty million, three hundred thirty thousand, eighty-seven".