20496036 has 96 divisors (see below), whose sum is σ = 56060928. Its totient is φ = 5765760.

The previous prime is 20496017. The next prime is 20496043. The reversal of 20496036 is 63069402.

20496036 = 238² + 239² + ... + 421².

It is a junction number, because it is equal to n+sod(n) for n = 20495994 and 20496012.

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 31 ways as a sum of consecutive naturals, for example, 130470 + ... + 130626.

It is an arithmetic number, because the mean of its divisors is an integer number (583968).

Almost surely, 2^20496036 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 20496036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28030464).

20496036 is an abundant number, since it is smaller than the sum of its proper divisors (35564892).

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

20496036 is a wasteful number, since it uses less digits than its factorization.

20496036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 20496036 is about 4527.2547973358. The cubic root of 20496036 is about 273.6675421464.

The spelling of 20496036 in words is "twenty million, four hundred ninety-six thousand, thirty-six".