1378229 has 8 divisors (see below), whose sum is σ = 1485312. Its totient is φ = 1275120.

The previous prime is 1378219. The next prime is 1378231. The reversal of 1378229 is 9228731.

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

It is not a de Polignac number, because 1378229 - 2⁸ = 1377973 is a prime.

It is a super-3 number, since 3×1378229³ = 7853900706333308967, which contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1378195 and 1378204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378219) 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 7 ways as a sum of consecutive naturals, for example, 254 + ... + 1679.

It is an arithmetic number, because the mean of its divisors is an integer number (185664).

2^1378229 is an apocalyptic number.

It is an amenable number.

1378229 is a deficient number, since it is larger than the sum of its proper divisors (107083).

1378229 is a wasteful number, since it uses less digits than its factorization.

1378229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987.

The product of its digits is 6048, while the sum is 32.

The square root of 1378229 is about 1173.9799827936. The cubic root of 1378229 is about 111.2859817121.

The spelling of 1378229 in words is "one million, three hundred seventy-eight thousand, two hundred twenty-nine".