1365606 has 64 divisors (see below), whose sum is σ = 3513600. Its totient is φ = 392040.

The previous prime is 1365583. The next prime is 1365659. The reversal of 1365606 is 6065631.

1365606 is a `hidden beast` number, since 1 + 3 + 656 + 0 + 6 = 666.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 1365606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71865 + ... + 71883.

It is an arithmetic number, because the mean of its divisors is an integer number (54900).

2^1365606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1365606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1756800).

1365606 is an abundant number, since it is smaller than the sum of its proper divisors (2147994).

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

1365606 is a wasteful number, since it uses less digits than its factorization.

1365606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63 (or 35 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1365606 is about 1168.5914598353. The cubic root of 1365606 is about 110.9451884244.

The spelling of 1365606 in words is "one million, three hundred sixty-five thousand, six hundred six".