1381449 has 8 divisors (see below), whose sum is σ = 1922112. Its totient is φ = 880880.

The previous prime is 1381441. The next prime is 1381451. The reversal of 1381449 is 9441831.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1381449 - 2³ = 1381441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1381441) 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, 9942 + ... + 10079.

It is an arithmetic number, because the mean of its divisors is an integer number (240264).

2^1381449 is an apocalyptic number.

It is an amenable number.

1381449 is a deficient number, since it is larger than the sum of its proper divisors (540663).

1381449 is a wasteful number, since it uses less digits than its factorization.

1381449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20047.

The product of its digits is 3456, while the sum is 30.

The square root of 1381449 is about 1175.3505859955. The cubic root of 1381449 is about 111.3725812915.

It can be divided in two parts, 1381 and 449, that added together give a triangular number (1830 = T₆₀).

The spelling of 1381449 in words is "one million, three hundred eighty-one thousand, four hundred forty-nine".