1340556 has 24 divisors (see below), whose sum is σ = 3575040. Its totient is φ = 382992.

The previous prime is 1340527. The next prime is 1340557. The reversal of 1340556 is 6550431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7896 + ... + 8063.

It is an arithmetic number, because the mean of its divisors is an integer number (148960).

2^1340556 is an apocalyptic number.

It is an amenable number.

1340556 is an abundant number, since it is smaller than the sum of its proper divisors (2234484).

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

1340556 is a wasteful number, since it uses less digits than its factorization.

1340556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15973 (or 15971 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1340556 is about 1157.8238207949. The cubic root of 1340556 is about 110.2626231812.

Adding to 1340556 its reverse (6550431), we get a palindrome (7890987).

The spelling of 1340556 in words is "one million, three hundred forty thousand, five hundred fifty-six".