1340356 has 6 divisors (see below), whose sum is σ = 2345630. Its totient is φ = 670176.

The previous prime is 1340333. The next prime is 1340357. The reversal of 1340356 is 6530431.

It can be written as a sum of positive squares in only one way, i.e., 968256 + 372100 = 984^2 + 610^2 .

It is not an unprimeable number, because it can be changed into a prime (1340357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167541 + ... + 167548.

2^1340356 is an apocalyptic number.

It is an amenable number.

1340356 is a deficient number, since it is larger than the sum of its proper divisors (1005274).

1340356 is a wasteful number, since it uses less digits than its factorization.

1340356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335093 (or 335091 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1340356 is about 1157.7374486471. The cubic root of 1340356 is about 110.2571394811.

Adding to 1340356 its reverse (6530431), we get a palindrome (7870787).

The spelling of 1340356 in words is "one million, three hundred forty thousand, three hundred fifty-six".