1678448 has 20 divisors (see below), whose sum is σ = 3394128. Its totient is φ = 802560.

The previous prime is 1678429. The next prime is 1678459. The reversal of 1678448 is 8448761.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1913 + ... + 2648.

2^1678448 is an apocalyptic number.

It is an amenable number.

1678448 is an abundant number, since it is smaller than the sum of its proper divisors (1715680).

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

1678448 is a wasteful number, since it uses less digits than its factorization.

1678448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4592 (or 4586 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 1678448 is about 1295.5493043493. The cubic root of 1678448 is about 118.8418207654.

The spelling of 1678448 in words is "one million, six hundred seventy-eight thousand, four hundred forty-eight".