1365966 has 48 divisors (see below), whose sum is σ = 3485664. Its totient is φ = 378432.

The previous prime is 1365919. The next prime is 1365977. The reversal of 1365966 is 6695631.

It is a super-2 number, since 2×1365966² = 3731726226312, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1365966.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4516 + ... + 4808.

It is an arithmetic number, because the mean of its divisors is an integer number (72618).

2^1365966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1365966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1742832).

1365966 is an abundant number, since it is smaller than the sum of its proper divisors (2119698).

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

1365966 is a wasteful number, since it uses less digits than its factorization.

1365966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 342 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 1365966 is about 1168.7454812747. The cubic root of 1365966 is about 110.9549366628.

The spelling of 1365966 in words is "one million, three hundred sixty-five thousand, nine hundred sixty-six".