1994688 has 42 divisors (see below), whose sum is σ = 5719064. Its totient is φ = 664704.

The previous prime is 1994687. The next prime is 1994711. The reversal of 1994688 is 8864991.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1156 + ... + 2307.

2^1994688 is an apocalyptic number.

1994688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1994688 is an abundant number, since it is smaller than the sum of its proper divisors (3724376).

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

1994688 is a wasteful number, since it uses less digits than its factorization.

1994688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481 (or 3468 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 1994688 is about 1412.3342380612. The cubic root of 1994688 is about 125.8804610787.

The spelling of 1994688 in words is "one million, nine hundred ninety-four thousand, six hundred eighty-eight".