1340786830 has 8 divisors (see below), whose sum is σ = 2413416312. Its totient is φ = 536314728.

The previous prime is 1340786819. The next prime is 1340786857. The reversal of 1340786830 is 386870431.

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

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 67039332 + ... + 67039351.

It is an arithmetic number, because the mean of its divisors is an integer number (301677039).

Almost surely, 2^1340786830 is an apocalyptic number.

1340786830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340786830 is a deficient number, since it is larger than the sum of its proper divisors (1072629482).

1340786830 is a wasteful number, since it uses less digits than its factorization.

1340786830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134078690.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1340786830 is about 36616.7561370474. The cubic root of 1340786830 is about 1102.6895151577.

The spelling of 1340786830 in words is "one billion, three hundred forty million, seven hundred eighty-six thousand, eight hundred thirty".