1994000 has 40 divisors (see below), whose sum is σ = 4826328. Its totient is φ = 796800.

The previous prime is 1993997. The next prime is 1994033. The reversal of 1994000 is 4991.

It can be written as a sum of positive squares in 4 ways, for example, as 256 + 1993744 = 16^2 + 1412^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1502 + ... + 2498.

2^1994000 is an apocalyptic number.

1994000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1994000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2413164).

1994000 is an abundant number, since it is smaller than the sum of its proper divisors (2832328).

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

1994000 is an equidigital number, since it uses as much as digits as its factorization.

1994000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1994000 is about 1412.0906486483. The cubic root of 1994000 is about 125.8659866820.

Adding to 1994000 its reverse (4991), we get a palindrome (1998991).

The spelling of 1994000 in words is "one million, nine hundred ninety-four thousand".