195017020 has 48 divisors (see below), whose sum is σ = 448551936. Its totient is φ = 70632000.

The previous prime is 195017003. The next prime is 195017027. The reversal of 195017020 is 20710591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195017027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57985 + ... + 61255.

It is an arithmetic number, because the mean of its divisors is an integer number (9344832).

Almost surely, 2^195017020 is an apocalyptic number.

195017020 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 195017020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224275968).

195017020 is an abundant number, since it is smaller than the sum of its proper divisors (253534916).

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

195017020 is a wasteful number, since it uses less digits than its factorization.

195017020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562 (or 3560 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 195017020 is about 13964.8494442296. The cubic root of 195017020 is about 579.9058705745.

The spelling of 195017020 in words is "one hundred ninety-five million, seventeen thousand, twenty".