1142378 has 8 divisors (see below), whose sum is σ = 1723680. Its totient is φ = 567820.

The previous prime is 1142363. The next prime is 1142389. The reversal of 1142378 is 8732411.

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

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1238 + ... + 1953.

It is an arithmetic number, because the mean of its divisors is an integer number (215460).

2^1142378 is an apocalyptic number.

1142378 is a deficient number, since it is larger than the sum of its proper divisors (581302).

1142378 is a wasteful number, since it uses less digits than its factorization.

1142378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372.

The product of its digits is 1344, while the sum is 26.

The square root of 1142378 is about 1068.8208456051. The cubic root of 1142378 is about 104.5369785876.

Adding to 1142378 its reverse (8732411), we get a palindrome (9874789).

The spelling of 1142378 in words is "one million, one hundred forty-two thousand, three hundred seventy-eight".