1366450 has 12 divisors (see below), whose sum is σ = 2541690. Its totient is φ = 546560.

The previous prime is 1366433. The next prime is 1366459. The reversal of 1366450 is 546631.

It can be written as a sum of positive squares in 3 ways, for example, as 998001 + 368449 = 999^2 + 607^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1366459) 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, 13615 + ... + 13714.

2^1366450 is an apocalyptic number.

1366450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1366450 is a deficient number, since it is larger than the sum of its proper divisors (1175240).

1366450 is a wasteful number, since it uses less digits than its factorization.

1366450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27341 (or 27336 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1366450 is about 1168.9525225603. The cubic root of 1366450 is about 110.9680399289.

The spelling of 1366450 in words is "one million, three hundred sixty-six thousand, four hundred fifty".