1366764 has 48 divisors (see below), whose sum is σ = 3725568. Its totient is φ = 381888.

The previous prime is 1366763. The next prime is 1366769. The reversal of 1366764 is 4676631.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366763) 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, 4299 + ... + 4605.

It is an arithmetic number, because the mean of its divisors is an integer number (77616).

2^1366764 is an apocalyptic number.

1366764 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 1366764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862784).

1366764 is an abundant number, since it is smaller than the sum of its proper divisors (2358804).

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

1366764 is a wasteful number, since it uses less digits than its factorization.

1366764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 372 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 1366764 is about 1169.0868231231. The cubic root of 1366764 is about 110.9765391534.

It can be divided in two parts, 13667 and 64, that added together give a palindrome (13731).

The spelling of 1366764 in words is "one million, three hundred sixty-six thousand, seven hundred sixty-four".