195042980 has 96 divisors (see below), whose sum is σ = 486864000. Its totient is φ = 64834560.

The previous prime is 195042977. The next prime is 195042983. The reversal of 195042980 is 89240591.

It is an interprime number because it is at equal distance from previous prime (195042977) and next prime (195042983).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (195042983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120416 + ... + 122024.

It is an arithmetic number, because the mean of its divisors is an integer number (5071500).

Almost surely, 2^195042980 is an apocalyptic number.

195042980 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 195042980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243432000).

195042980 is an abundant number, since it is smaller than the sum of its proper divisors (291821020).

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

195042980 is a wasteful number, since it uses less digits than its factorization.

195042980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 195042980 is about 13965.7788898436. The cubic root of 195042980 is about 579.9316011295.

The spelling of 195042980 in words is "one hundred ninety-five million, forty-two thousand, nine hundred eighty".