1378039 has 8 divisors (see below), whose sum is σ = 1505952. Its totient is φ = 1253280.

The previous prime is 1378033. The next prime is 1378057. The reversal of 1378039 is 9308731.

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 1378039 - 2³ = 1378031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1378039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378031) 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, 177 + ... + 1669.

It is an arithmetic number, because the mean of its divisors is an integer number (188244).

2^1378039 is an apocalyptic number.

1378039 is a deficient number, since it is larger than the sum of its proper divisors (127913).

1378039 is a wasteful number, since it uses less digits than its factorization.

1378039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1378039 is about 1173.8990586929. The cubic root of 1378039 is about 111.2808675866.

The spelling of 1378039 in words is "one million, three hundred seventy-eight thousand, thirty-nine".