1995000 has 160 divisors (see below), whose sum is σ = 7497600. Its totient is φ = 432000.

The previous prime is 1994989. The next prime is 1995011. The reversal of 1995000 is 5991.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1994989) and next prime (1995011).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 104991 + ... + 105009.

It is an arithmetic number, because the mean of its divisors is an integer number (46860).

2^1995000 is an apocalyptic number.

1995000 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 1995000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3748800).

1995000 is an abundant number, since it is smaller than the sum of its proper divisors (5502600).

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

1995000 is a wasteful number, since it uses less digits than its factorization.

1995000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 24.

The square root of 1995000 is about 1412.4446891826. Note that the first 3 decimals coincide. The cubic root of 1995000 is about 125.8870239524.

The spelling of 1995000 in words is "one million, nine hundred ninety-five thousand".