20335372 has 12 divisors (see below), whose sum is σ = 35710416. Its totient is φ = 10132400.

The previous prime is 20335333. The next prime is 20335379. The reversal of 20335372 is 27353302.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20335379) 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 3 ways as a sum of consecutive naturals, for example, 7504 + ... + 9847.

It is an arithmetic number, because the mean of its divisors is an integer number (2975868).

Almost surely, 2^20335372 is an apocalyptic number.

It is an amenable number.

20335372 is a deficient number, since it is larger than the sum of its proper divisors (15375044).

20335372 is a wasteful number, since it uses less digits than its factorization.

20335372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17648 (or 17646 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 25.

The square root of 20335372 is about 4509.4758010217. The cubic root of 20335372 is about 272.9505919432.

Adding to 20335372 its reverse (27353302), we get a palindrome (47688674).

The spelling of 20335372 in words is "twenty million, three hundred thirty-five thousand, three hundred seventy-two".