20032453 has 8 divisors (see below), whose sum is σ = 23427008. Its totient is φ = 16771104.

The previous prime is 20032423. The next prime is 20032457. The reversal of 20032453 is 35423002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20032453 - 2⁹ = 20031941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20032453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32976 + ... + 33577.

It is an arithmetic number, because the mean of its divisors is an integer number (2928376).

Almost surely, 2^20032453 is an apocalyptic number.

It is an amenable number.

20032453 is a deficient number, since it is larger than the sum of its proper divisors (3394555).

20032453 is an equidigital number, since it uses as much as digits as its factorization.

20032453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66603.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 20032453 is about 4475.7628400084. The cubic root of 20032453 is about 271.5885006443.

Adding to 20032453 its reverse (35423002), we get a palindrome (55455455).

The spelling of 20032453 in words is "twenty million, thirty-two thousand, four hundred fifty-three".