1366146 has 28 divisors (see below), whose sum is σ = 3075702. Its totient is φ = 454896.

The previous prime is 1366121. The next prime is 1366159. The reversal of 1366146 is 6416631.

It can be written as a sum of positive squares in only one way, i.e., 1347921 + 18225 = 1161^2 + 135^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 990 + ... + 1926.

2^1366146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1366146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1537851).

1366146 is an abundant number, since it is smaller than the sum of its proper divisors (1709556).

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

1366146 is an frugal number, since it uses more digits than its factorization.

1366146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 942 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 1366146 is about 1168.8224843833. The cubic root of 1366146 is about 110.9598101397.

The spelling of 1366146 in words is "one million, three hundred sixty-six thousand, one hundred forty-six".