1366872 has 48 divisors (see below), whose sum is σ = 3711240. Its totient is φ = 419328.

The previous prime is 1366861. The next prime is 1366877. The reversal of 1366872 is 2786631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366877) 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 11 ways as a sum of consecutive naturals, for example, 3888 + ... + 4224.

2^1366872 is an apocalyptic number.

1366872 is a gapful number since it is divisible by the number (12) 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 1366872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1855620).

1366872 is an abundant number, since it is smaller than the sum of its proper divisors (2344368).

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

1366872 is a wasteful number, since it uses less digits than its factorization.

1366872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 355 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 1366872 is about 1169.1330121077. The cubic root of 1366872 is about 110.9794621526.

The spelling of 1366872 in words is "one million, three hundred sixty-six thousand, eight hundred seventy-two".