20335238 has 16 divisors (see below), whose sum is σ = 38029824. Its totient is φ = 7922760.

The previous prime is 20335229. The next prime is 20335253. The reversal of 20335238 is 83253302.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 65870 + ... + 66177.

It is an arithmetic number, because the mean of its divisors is an integer number (2376864).

Almost surely, 2^20335238 is an apocalyptic number.

20335238 is a deficient number, since it is larger than the sum of its proper divisors (17694586).

20335238 is a wasteful number, since it uses less digits than its factorization.

20335238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132067.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 20335238 is about 4509.4609433945. The cubic root of 20335238 is about 272.9499924057.

The spelling of 20335238 in words is "twenty million, three hundred thirty-five thousand, two hundred thirty-eight".