20253368 has 16 divisors (see below), whose sum is σ = 39285000. Its totient is φ = 9777376.

The previous prime is 20253361. The next prime is 20253377. The reversal of 20253368 is 86335202.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 20253368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20253361) 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, 43418 + ... + 43881.

Almost surely, 2^20253368 is an apocalyptic number.

It is an amenable number.

20253368 is a deficient number, since it is larger than the sum of its proper divisors (19031632).

20253368 is a wasteful number, since it uses less digits than its factorization.

20253368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87334 (or 87330 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 20253368 is about 4500.3742066633. The cubic root of 20253368 is about 272.5831993517.

The spelling of 20253368 in words is "twenty million, two hundred fifty-three thousand, three hundred sixty-eight".