20601896 has 64 divisors (see below), whose sum is σ = 46366080. Its totient is φ = 8398080.

The previous prime is 20601883. The next prime is 20601901. The reversal of 20601896 is 69810602.

It is a super-3 number, since 3×20601896³ (a number of 23 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 126311 + ... + 126473.

It is an arithmetic number, because the mean of its divisors is an integer number (724470).

Almost surely, 2^20601896 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 20601896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23183040).

20601896 is an abundant number, since it is smaller than the sum of its proper divisors (25764184).

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

20601896 is a wasteful number, since it uses less digits than its factorization.

20601896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 20601896 is about 4538.9311517140. The cubic root of 20601896 is about 274.1378885773.

The spelling of 20601896 in words is "twenty million, six hundred one thousand, eight hundred ninety-six".