20449296 has 60 divisors (see below), whose sum is σ = 65408512. Its totient is φ = 5842368.

The previous prime is 20449279. The next prime is 20449309. The reversal of 20449296 is 69294402.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20449296.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9136 + ... + 11151.

Almost surely, 2^20449296 is an apocalyptic number.

It is an amenable number.

20449296 is an abundant number, since it is smaller than the sum of its proper divisors (44959216).

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

20449296 is a wasteful number, since it uses less digits than its factorization.

20449296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20308 (or 20299 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 20449296 is about 4522.0897823904. The cubic root of 20449296 is about 273.4593562568.

The spelling of 20449296 in words is "twenty million, four hundred forty-nine thousand, two hundred ninety-six".