1378016 has 12 divisors (see below), whose sum is σ = 2713032. Its totient is φ = 688992.

The previous prime is 1378009. The next prime is 1378019. The reversal of 1378016 is 6108731.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21500 + ... + 21563.

It is an arithmetic number, because the mean of its divisors is an integer number (226086).

2^1378016 is an apocalyptic number.

1378016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1378016 is a deficient number, since it is larger than the sum of its proper divisors (1335016).

1378016 is an equidigital number, since it uses as much as digits as its factorization.

1378016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43073 (or 43065 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1378016 is about 1173.8892622390. The cubic root of 1378016 is about 111.2802484764.

The spelling of 1378016 in words is "one million, three hundred seventy-eight thousand, sixteen".