196177920 has 208 divisors, whose sum is σ = 654231552. Its totient is φ = 50135040.

The previous prime is 196177903. The next prime is 196177931. The reversal of 196177920 is 29771691.

It is a happy number.

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, 1904589 + ... + 1904691.

It is an arithmetic number, because the mean of its divisors is an integer number (3145344).

Almost surely, 2^196177920 is an apocalyptic number.

196177920 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 196177920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327115776).

196177920 is an abundant number, since it is smaller than the sum of its proper divisors (458053632).

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

196177920 is a wasteful number, since it uses less digits than its factorization.

196177920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 42.

The square root of 196177920 is about 14006.3528443346. The cubic root of 196177920 is about 581.0542853621.

The spelling of 196177920 in words is "one hundred ninety-six million, one hundred seventy-seven thousand, nine hundred twenty".