1366411 has 6 divisors (see below), whose sum is σ = 1400820. Its totient is φ = 1332828.

The previous prime is 1366397. The next prime is 1366427. The reversal of 1366411 is 1146631.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1366411 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1366471) 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, 1480 + ... + 2218.

It is an arithmetic number, because the mean of its divisors is an integer number (233470).

2^1366411 is an apocalyptic number.

1366411 is a deficient number, since it is larger than the sum of its proper divisors (34409).

1366411 is an frugal number, since it uses more digits than its factorization.

1366411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 782 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 1366411 is about 1168.9358408399. The cubic root of 1366411 is about 110.9669842018.

The spelling of 1366411 in words is "one million, three hundred sixty-six thousand, four hundred eleven".