20013292 has 24 divisors (see below), whose sum is σ = 38180016. Its totient is φ = 9123648.

The previous prime is 20013271. The next prime is 20013293. The reversal of 20013292 is 29231002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20013293) 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, 1998 + ... + 6634.

It is an arithmetic number, because the mean of its divisors is an integer number (1590834).

Almost surely, 2^20013292 is an apocalyptic number.

It is an amenable number.

20013292 is a deficient number, since it is larger than the sum of its proper divisors (18166724).

20013292 is a wasteful number, since it uses less digits than its factorization.

20013292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4737 (or 4735 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 20013292 is about 4473.6217989455. The cubic root of 20013292 is about 271.5018817411.

Adding to 20013292 its reverse (29231002), we get a palindrome (49244294).

The spelling of 20013292 in words is "twenty million, thirteen thousand, two hundred ninety-two".