1340817412 has 12 divisors (see below), whose sum is σ = 2559742416. Its totient is φ = 609462440.

The previous prime is 1340817397. The next prime is 1340817419. The reversal of 1340817412 is 2147180431.

It is not an unprimeable number, because it can be changed into a prime (1340817419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15236518 + ... + 15236605.

It is an arithmetic number, because the mean of its divisors is an integer number (213311868).

Almost surely, 2^1340817412 is an apocalyptic number.

It is an amenable number.

1340817412 is a deficient number, since it is larger than the sum of its proper divisors (1218925004).

1340817412 is a wasteful number, since it uses less digits than its factorization.

1340817412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30473138 (or 30473136 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1340817412 is about 36617.1737303687. The cubic root of 1340817412 is about 1102.6978988405.

Adding to 1340817412 its reverse (2147180431), we get a palindrome (3487997843).

The spelling of 1340817412 in words is "one billion, three hundred forty million, eight hundred seventeen thousand, four hundred twelve".