1994985 has 24 divisors (see below), whose sum is σ = 3541824. Its totient is φ = 1038240.

The previous prime is 1994983. The next prime is 1994989. The reversal of 1994985 is 5894991.

It is not a de Polignac number, because 1994985 - 2¹ = 1994983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1994985.

It is not an unprimeable number, because it can be changed into a prime (1994983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1420 + ... + 2450.

It is an arithmetic number, because the mean of its divisors is an integer number (147576).

2^1994985 is an apocalyptic number.

1994985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1994985 is a deficient number, since it is larger than the sum of its proper divisors (1546839).

1994985 is a wasteful number, since it uses less digits than its factorization.

1994985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085 (or 1082 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 1994985 is about 1412.4393792301. The cubic root of 1994985 is about 125.8867084453.

It can be divided in two parts, 199 and 4985, that added together give a square (5184 = 72²).

The spelling of 1994985 in words is "one million, nine hundred ninety-four thousand, nine hundred eighty-five".