20453104 has 20 divisors (see below), whose sum is σ = 45289264. Its totient is φ = 8765568.

The previous prime is 20453099. The next prime is 20453123. The reversal of 20453104 is 40135402.

It is a congruent number.

It is an unprimeable number.

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, 91197 + ... + 91420.

Almost surely, 2^20453104 is an apocalyptic number.

It is an amenable number.

20453104 is an abundant number, since it is smaller than the sum of its proper divisors (24836160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20453104 is a wasteful number, since it uses less digits than its factorization.

20453104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182632 (or 182626 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20453104 is about 4522.5108070628. The cubic root of 20453104 is about 273.4763294343.

Adding to 20453104 its reverse (40135402), we get a palindrome (60588506).

The spelling of 20453104 in words is "twenty million, four hundred fifty-three thousand, one hundred four".