195920424 has 192 divisors, whose sum is σ = 642686400. Its totient is φ = 55133568.

The previous prime is 195920423. The next prime is 195920447. The reversal of 195920424 is 424029591.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (195920423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1132402 + ... + 1132574.

It is an arithmetic number, because the mean of its divisors is an integer number (3347325).

Almost surely, 2^195920424 is an apocalyptic number.

195920424 is a gapful number since it is divisible by the number (14) 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 195920424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321343200).

195920424 is an abundant number, since it is smaller than the sum of its proper divisors (446765976).

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

195920424 is a wasteful number, since it uses less digits than its factorization.

195920424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 195920424 is about 13997.1577114784. The cubic root of 195920424 is about 580.7999504815.

The spelling of 195920424 in words is "one hundred ninety-five million, nine hundred twenty thousand, four hundred twenty-four".