1368449 has 8 divisors (see below), whose sum is σ = 1465128. Its totient is φ = 1273600.

The previous prime is 1368443. The next prime is 1368461. The reversal of 1368449 is 9448631.

It can be written as a sum of positive squares in 4 ways, for example, as 739600 + 628849 = 860^2 + 793^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1368449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1368443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1319 + ... + 2115.

It is an arithmetic number, because the mean of its divisors is an integer number (183141).

2^1368449 is an apocalyptic number.

It is an amenable number.

1368449 is a deficient number, since it is larger than the sum of its proper divisors (96679).

1368449 is a wasteful number, since it uses less digits than its factorization.

1368449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915.

The product of its digits is 20736, while the sum is 35.

The square root of 1368449 is about 1169.8072490799. The cubic root of 1368449 is about 111.0221258277.

The spelling of 1368449 in words is "one million, three hundred sixty-eight thousand, four hundred forty-nine".