195761840 has 20 divisors (see below), whose sum is σ = 455146464. Its totient is φ = 78304704.

The previous prime is 195761833. The next prime is 195761893. The reversal of 195761840 is 48167591.

195761840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223432 + ... + 1223591.

Almost surely, 2^195761840 is an apocalyptic number.

195761840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195761840 is an abundant number, since it is smaller than the sum of its proper divisors (259384624).

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

195761840 is a wasteful number, since it uses less digits than its factorization.

195761840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447036 (or 2447030 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 195761840 is about 13991.4917003156. The cubic root of 195761840 is about 580.6432024174.

The spelling of 195761840 in words is "one hundred ninety-five million, seven hundred sixty-one thousand, eight hundred forty".