195643480 has 64 divisors (see below), whose sum is σ = 481178880. Its totient is φ = 71270400.

The previous prime is 195643477. The next prime is 195643493. The reversal of 195643480 is 84346591.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16440 + ... + 25720.

It is an arithmetic number, because the mean of its divisors is an integer number (7518420).

Almost surely, 2^195643480 is an apocalyptic number.

195643480 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 195643480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240589440).

195643480 is an abundant number, since it is smaller than the sum of its proper divisors (285535400).

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

195643480 is a wasteful number, since it uses less digits than its factorization.

195643480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9340 (or 9336 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 195643480 is about 13987.2613473832. The cubic root of 195643480 is about 580.5261575007.

The spelling of 195643480 in words is "one hundred ninety-five million, six hundred forty-three thousand, four hundred eighty".