1378674 has 48 divisors (see below), whose sum is σ = 3383520. Its totient is φ = 415800.

The previous prime is 1378673. The next prime is 1378679. The reversal of 1378674 is 4768731.

It is a d-powerful number, because it can be written as 1 + 3⁵ + 7³ + 8⁵ + 6⁷ + 7⁵ + 4¹⁰ .

It is not an unprimeable number, because it can be changed into a prime (1378673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6429 + ... + 6639.

It is an arithmetic number, because the mean of its divisors is an integer number (70490).

2^1378674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1691760).

1378674 is an abundant number, since it is smaller than the sum of its proper divisors (2004846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1378674 is a wasteful number, since it uses less digits than its factorization.

1378674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 227 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 1378674 is about 1174.1694937274. The cubic root of 1378674 is about 111.2979576931.

It can be divided in two parts, 13 and 78674, that added together give a palindrome (78687).

The spelling of 1378674 in words is "one million, three hundred seventy-eight thousand, six hundred seventy-four".