1340042330 has 96 divisors (see below), whose sum is σ = 2792361600. Its totient is φ = 461774720.

The previous prime is 1340042309. The next prime is 1340042339. The reversal of 1340042330 is 332400431.

It is not an unprimeable number, because it can be changed into a prime (1340042339) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4981436 + ... + 4981704.

It is an arithmetic number, because the mean of its divisors is an integer number (29087100).

Almost surely, 2^1340042330 is an apocalyptic number.

1340042330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340042330 is an abundant number, since it is smaller than the sum of its proper divisors (1452319270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1340042330 is a wasteful number, since it uses less digits than its factorization.

1340042330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1340042330 is about 36606.5886146196. The cubic root of 1340042330 is about 1102.4853802118.

Adding to 1340042330 its reverse (332400431), we get a palindrome (1672442761).

The spelling of 1340042330 in words is "one billion, three hundred forty million, forty-two thousand, three hundred thirty".