1366736 has 20 divisors (see below), whose sum is σ = 3026592. Its totient is φ = 585696.

The previous prime is 1366721. The next prime is 1366747. The reversal of 1366736 is 6376631.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5990 + ... + 6213.

2^1366736 is an apocalyptic number.

1366736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1366736 is an abundant number, since it is smaller than the sum of its proper divisors (1659856).

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

1366736 is a wasteful number, since it uses less digits than its factorization.

1366736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12218 (or 12212 counting only the distinct ones).

The product of its digits is 13608, while the sum is 32.

The square root of 1366736 is about 1169.0748479032. The cubic root of 1366736 is about 110.9757813136.

The spelling of 1366736 in words is "one million, three hundred sixty-six thousand, seven hundred thirty-six".