20419453 has 8 divisors (see below), whose sum is σ = 20955968. Its totient is φ = 19885824.

The previous prime is 20419417. The next prime is 20419459. The reversal of 20419453 is 35491402.

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

It is a cyclic number.

It is not a de Polignac number, because 20419453 - 2⁹ = 20418941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20419459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24400 + ... + 25222.

It is an arithmetic number, because the mean of its divisors is an integer number (2619496).

Almost surely, 2^20419453 is an apocalyptic number.

It is an amenable number.

20419453 is a deficient number, since it is larger than the sum of its proper divisors (536515).

20419453 is an equidigital number, since it uses as much as digits as its factorization.

20419453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 20419453 is about 4518.7888864164. The cubic root of 20419453 is about 273.3262657635.

The spelling of 20419453 in words is "twenty million, four hundred nineteen thousand, four hundred fifty-three".