196365904 has 80 divisors (see below), whose sum is σ = 468541440. Its totient is φ = 77869440.

The previous prime is 196365877. The next prime is 196365913. The reversal of 196365904 is 409563691.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78627 + ... + 81085.

It is an arithmetic number, because the mean of its divisors is an integer number (5856768).

Almost surely, 2^196365904 is an apocalyptic number.

196365904 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 196365904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234270720).

196365904 is an abundant number, since it is smaller than the sum of its proper divisors (272175536).

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

196365904 is a wasteful number, since it uses less digits than its factorization.

196365904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528 (or 2522 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 196365904 is about 14013.0619066641. The cubic root of 196365904 is about 581.2398210882.

The spelling of 196365904 in words is "one hundred ninety-six million, three hundred sixty-five thousand, nine hundred four".