1356656 has 20 divisors (see below), whose sum is σ = 3004272. Its totient is φ = 581376.

The previous prime is 1356647. The next prime is 1356659. The reversal of 1356656 is 6566531.

1356656 is nontrivially palindromic in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5945 + ... + 6168.

2^1356656 is an apocalyptic number.

1356656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1356656 is an abundant number, since it is smaller than the sum of its proper divisors (1647616).

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

1356656 is a wasteful number, since it uses less digits than its factorization.

1356656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12128 (or 12122 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 1356656 is about 1164.7557683910. The cubic root of 1356656 is about 110.7022836601.

The spelling of 1356656 in words is "one million, three hundred fifty-six thousand, six hundred fifty-six".