196581924 has 216 divisors, whose sum is σ = 653785440. Its totient is φ = 50893920.

The previous prime is 196581901. The next prime is 196581937. The reversal of 196581924 is 429185691.

It is a self number, because there is not a number n which added to its sum of digits gives 196581924.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 640179 + ... + 640485.

Almost surely, 2^196581924 is an apocalyptic number.

196581924 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 196581924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326892720).

196581924 is an abundant number, since it is smaller than the sum of its proper divisors (457203516).

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

196581924 is a wasteful number, since it uses less digits than its factorization.

196581924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 330 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 196581924 is about 14020.7675966760. The cubic root of 196581924 is about 581.4528815186.

The spelling of 196581924 in words is "one hundred ninety-six million, five hundred eighty-one thousand, nine hundred twenty-four".