1340348308 has 18 divisors (see below), whose sum is σ = 2526538686. Its totient is φ = 618500448.

The previous prime is 1340348297. The next prime is 1340348309. The reversal of 1340348308 is 8038430431.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 708730884 + 631617424 = 26622^2 + 25132^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340348309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 261466 + ... + 266542.

Almost surely, 2^1340348308 is an apocalyptic number.

It is an amenable number.

1340348308 is a deficient number, since it is larger than the sum of its proper divisors (1186190378).

1340348308 is an frugal number, since it uses more digits than its factorization.

1340348308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10171 (or 5092 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 1340348308 is about 36610.7676510613. The cubic root of 1340348308 is about 1102.5692856706.

Adding to 1340348308 its reverse (8038430431), we get a palindrome (9378778739).

The spelling of 1340348308 in words is "one billion, three hundred forty million, three hundred forty-eight thousand, three hundred eight".