20469753 has 10 divisors (see below), whose sum is σ = 30578394. Its totient is φ = 13646448.

The previous prime is 20469739. The next prime is 20469791. The reversal of 20469753 is 35796402.

It can be written as a sum of positive squares in only one way, i.e., 18045504 + 2424249 = 4248^2 + 1557^2 .

It is not a de Polignac number, because 20469753 - 2¹⁰ = 20468729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20469353) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 126276 + ... + 126437.

Almost surely, 2^20469753 is an apocalyptic number.

It is an amenable number.

20469753 is a deficient number, since it is larger than the sum of its proper divisors (10108641).

20469753 is an equidigital number, since it uses as much as digits as its factorization.

20469753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252725 (or 252716 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 20469753 is about 4524.3511136958. The cubic root of 20469753 is about 273.5505133259.

The spelling of 20469753 in words is "twenty million, four hundred sixty-nine thousand, seven hundred fifty-three".