1366574 has 12 divisors (see below), whose sum is σ = 2253552. Its totient is φ = 621060.

The previous prime is 1366549. The next prime is 1366577. The reversal of 1366574 is 4756631.

It is a d-powerful number, because it can be written as 1 + 3⁶ + 6³ + 6⁷ + 5 + 7⁷ + 4⁹ .

It is a self number, because there is not a number n which added to its sum of digits gives 1366574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366577) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2582 + ... + 3065.

It is an arithmetic number, because the mean of its divisors is an integer number (187796).

2^1366574 is an apocalyptic number.

1366574 is a deficient number, since it is larger than the sum of its proper divisors (886978).

1366574 is a wasteful number, since it uses less digits than its factorization.

1366574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671 (or 5660 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 1366574 is about 1169.0055602947. The cubic root of 1366574 is about 110.9713964661.

The spelling of 1366574 in words is "one million, three hundred sixty-six thousand, five hundred seventy-four".