20446296 has 72 divisors (see below), whose sum is σ = 56140740. Its totient is φ = 6202560.

The previous prime is 20446289. The next prime is 20446297. The reversal of 20446296 is 69264402.

It is a happy number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20446297) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 287941 + ... + 288011.

Almost surely, 2^20446296 is an apocalyptic number.

20446296 is a gapful number since it is divisible by the number (26) 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 20446296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28070370).

20446296 is an abundant number, since it is smaller than the sum of its proper divisors (35694444).

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

20446296 is a wasteful number, since it uses less digits than its factorization.

20446296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 20446296 is about 4521.7580651777. The cubic root of 20446296 is about 273.4459830468.

The spelling of 20446296 in words is "twenty million, four hundred forty-six thousand, two hundred ninety-six".