20398296 has 32 divisors (see below), whose sum is σ = 51264000. Its totient is φ = 6763680.

The previous prime is 20398291. The next prime is 20398307. The reversal of 20398296 is 69289302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20398291) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2641 + ... + 6911.

It is an arithmetic number, because the mean of its divisors is an integer number (1602000).

Almost surely, 2^20398296 is an apocalyptic number.

It is an amenable number.

20398296 is an abundant number, since it is smaller than the sum of its proper divisors (30865704).

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

20398296 is a wasteful number, since it uses less digits than its factorization.

20398296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479 (or 4475 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 20398296 is about 4516.4472763445. The cubic root of 20398296 is about 273.2318335543.

The spelling of 20398296 in words is "twenty million, three hundred ninety-eight thousand, two hundred ninety-six".