1378894 has 16 divisors (see below), whose sum is σ = 2274480. Its totient is φ = 621760.

The previous prime is 1378859. The next prime is 1378903. The reversal of 1378894 is 4988731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4992 + ... + 5260.

It is an arithmetic number, because the mean of its divisors is an integer number (142155).

2^1378894 is an apocalyptic number.

1378894 is a deficient number, since it is larger than the sum of its proper divisors (895586).

1378894 is a wasteful number, since it uses less digits than its factorization.

1378894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515.

The product of its digits is 48384, while the sum is 40.

The square root of 1378894 is about 1174.2631732282. The cubic root of 1378894 is about 111.3038774509.

The spelling of 1378894 in words is "one million, three hundred seventy-eight thousand, eight hundred ninety-four".