1681468 has 6 divisors (see below), whose sum is σ = 2942576. Its totient is φ = 840732.

The previous prime is 1681423. The next prime is 1681469. The reversal of 1681468 is 8641861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210180 + ... + 210187.

2^1681468 is an apocalyptic number.

It is an amenable number.

1681468 is a deficient number, since it is larger than the sum of its proper divisors (1261108).

1681468 is a wasteful number, since it uses less digits than its factorization.

1681468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420371 (or 420369 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 1681468 is about 1296.7143093218. The cubic root of 1681468 is about 118.9130546788.

The spelling of 1681468 in words is "one million, six hundred eighty-one thousand, four hundred sixty-eight".