1340235650 has 48 divisors (see below), whose sum is σ = 2699827200. Its totient is φ = 492048960.

The previous prime is 1340235643. The next prime is 1340235707. The reversal of 1340235650 is 565320431.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110591 + ... + 122109.

It is an arithmetic number, because the mean of its divisors is an integer number (56246400).

Almost surely, 2^1340235650 is an apocalyptic number.

1340235650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340235650 is an abundant number, since it is smaller than the sum of its proper divisors (1359591550).

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

1340235650 is a wasteful number, since it uses less digits than its factorization.

1340235650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11723 (or 11718 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1340235650 is about 36609.2290276646. The cubic root of 1340235650 is about 1102.5383940160.

The spelling of 1340235650 in words is "one billion, three hundred forty million, two hundred thirty-five thousand, six hundred fifty".