1356684 has 48 divisors (see below), whose sum is σ = 3741696. Its totient is φ = 374400.

The previous prime is 1356671. The next prime is 1356689. The reversal of 1356684 is 4866531.

It is not an unprimeable number, because it can be changed into a prime (1356689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2344 + ... + 2864.

It is an arithmetic number, because the mean of its divisors is an integer number (77952).

2^1356684 is an apocalyptic number.

1356684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1356684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1870848).

1356684 is an abundant number, since it is smaller than the sum of its proper divisors (2385012).

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

1356684 is a wasteful number, since it uses less digits than its factorization.

1356684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 564 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 1356684 is about 1164.7677880161. The cubic root of 1356684 is about 110.7030452490.

The spelling of 1356684 in words is "one million, three hundred fifty-six thousand, six hundred eighty-four".