20416353 has 8 divisors (see below), whose sum is σ = 27261600. Its totient is φ = 13591008.

The previous prime is 20416343. The next prime is 20416367. The reversal of 20416353 is 35361402.

It is a happy number.

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

It is not a de Polignac number, because 20416353 - 2¹⁴ = 20399969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20416313) 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, 2388 + ... + 6821.

It is an arithmetic number, because the mean of its divisors is an integer number (3407700).

Almost surely, 2^20416353 is an apocalyptic number.

It is an amenable number.

20416353 is a deficient number, since it is larger than the sum of its proper divisors (6845247).

20416353 is an equidigital number, since it uses as much as digits as its factorization.

20416353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9951.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 20416353 is about 4518.4458611341. The cubic root of 20416353 is about 273.3124332952.

Adding to 20416353 its reverse (35361402), we get a palindrome (55777755).

The spelling of 20416353 in words is "twenty million, four hundred sixteen thousand, three hundred fifty-three".