1678044 has 12 divisors (see below), whose sum is σ = 3915464. Its totient is φ = 559344.

The previous prime is 1678037. The next prime is 1678067. The reversal of 1678044 is 4408761.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 6.

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, 69907 + ... + 69930.

2^1678044 is an apocalyptic number.

It is an amenable number.

1678044 is an abundant number, since it is smaller than the sum of its proper divisors (2237420).

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

1678044 is a wasteful number, since it uses less digits than its factorization.

1678044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139844 (or 139842 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 1678044 is about 1295.3933765463. The cubic root of 1678044 is about 118.8322849823.

The spelling of 1678044 in words is "one million, six hundred seventy-eight thousand, forty-four".