1340436 has 24 divisors (see below), whose sum is σ = 3213280. Its totient is φ = 434592.

The previous prime is 1340419. The next prime is 1340441. The reversal of 1340436 is 6340431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066 + ... + 1953.

2^1340436 is an apocalyptic number.

It is an amenable number.

1340436 is an abundant number, since it is smaller than the sum of its proper divisors (1872844).

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

1340436 is a wasteful number, since it uses less digits than its factorization.

1340436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063 (or 3061 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1340436 is about 1157.7719982795. The cubic root of 1340436 is about 110.2593330266.

Adding to 1340436 its reverse (6340431), we get a palindrome (7680867).

The spelling of 1340436 in words is "one million, three hundred forty thousand, four hundred thirty-six".