201996396 has 96 divisors (see below), whose sum is σ = 624583680. Its totient is φ = 55199232.

The previous prime is 201996383. The next prime is 201996439. The reversal of 201996396 is 693699102.

It is a happy number.

201996396 is a `hidden beast` number, since 2 + 0 + 1 + 9 + 9 + 639 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11580 + ... + 23196.

It is an arithmetic number, because the mean of its divisors is an integer number (6506080).

Almost surely, 2^201996396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201996396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312291840).

201996396 is an abundant number, since it is smaller than the sum of its proper divisors (422587284).

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

201996396 is a wasteful number, since it uses less digits than its factorization.

201996396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11660 (or 11652 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 201996396 is about 14212.5436147088. The cubic root of 201996396 is about 586.7429413282.

The spelling of 201996396 in words is "two hundred one million, nine hundred ninety-six thousand, three hundred ninety-six".