20330453 has 16 divisors (see below), whose sum is σ = 25292736. Its totient is φ = 16055040.

The previous prime is 20330411. The next prime is 20330467. The reversal of 20330453 is 35403302.

It is a cyclic number.

It is not a de Polignac number, because 20330453 - 2¹⁴ = 20314069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1751 + ... + 6612.

It is an arithmetic number, because the mean of its divisors is an integer number (1580796).

Almost surely, 2^20330453 is an apocalyptic number.

It is an amenable number.

20330453 is a deficient number, since it is larger than the sum of its proper divisors (4962283).

20330453 is a wasteful number, since it uses less digits than its factorization.

20330453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8404.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 20330453 is about 4508.9303609615. The cubic root of 20330453 is about 272.9285818183.

Adding to 20330453 its reverse (35403302), we get a palindrome (55733755).

The spelling of 20330453 in words is "twenty million, three hundred thirty thousand, four hundred fifty-three".