1955000 has 80 divisors (see below), whose sum is σ = 5060880. Its totient is φ = 704000.

The previous prime is 1954991. The next prime is 1955021. The reversal of 1955000 is 5591.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 84989 + ... + 85011.

It is an arithmetic number, because the mean of its divisors is an integer number (63261).

2^1955000 is an apocalyptic number.

1955000 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 1955000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2530440).

1955000 is an abundant number, since it is smaller than the sum of its proper divisors (3105880).

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

1955000 is a wasteful number, since it uses less digits than its factorization.

1955000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 1955000 is about 1398.2131454110. The cubic root of 1955000 is about 125.0399872068.

The spelling of 1955000 in words is "one million, nine hundred fifty-five thousand".