19560996 has 108 divisors (see below), whose sum is σ = 62015772. Its totient is φ = 5152896.

The previous prime is 19560979. The next prime is 19561021. The reversal of 19560996 is 69906591.

It can be written as a sum of positive squares in 2 ways, for example, as 1920996 + 17640000 = 1386^2 + 4200^2 .

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 35 ways as a sum of consecutive naturals, for example, 22506 + ... + 23358.

Almost surely, 2^19560996 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 19560996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31007886).

19560996 is an abundant number, since it is smaller than the sum of its proper divisors (42454776).

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

19560996 is a wasteful number, since it uses less digits than its factorization.

19560996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 19560996 is about 4422.7814777581. The cubic root of 19560996 is about 269.4409833103.

Subtracting 19560996 from its reverse (69906591), we obtain a triangular number (50345595 = T₁₀₀₃₄).

The spelling of 19560996 in words is "nineteen million, five hundred sixty thousand, nine hundred ninety-six".