195904020 has 48 divisors (see below), whose sum is σ = 590728320. Its totient is φ = 48222336.

The previous prime is 195903991. The next prime is 195904031. The reversal of 195904020 is 20409591.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 124800 + ... + 126359.

It is an arithmetic number, because the mean of its divisors is an integer number (12306840).

Almost surely, 2^195904020 is an apocalyptic number.

195904020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195904020 is an abundant number, since it is smaller than the sum of its proper divisors (394824300).

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

195904020 is a wasteful number, since it uses less digits than its factorization.

195904020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251184 (or 251182 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 195904020 is about 13996.5717231042. The cubic root of 195904020 is about 580.7837403146.

The spelling of 195904020 in words is "one hundred ninety-five million, nine hundred four thousand, twenty".