20453326 has 4 divisors (see below), whose sum is σ = 30679992. Its totient is φ = 10226662.

The previous prime is 20453311. The next prime is 20453327. The reversal of 20453326 is 62335402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62335402 = 2 ⋅31167701.

It is a self number, because there is not a number n which added to its sum of digits gives 20453326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20453327) 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 as a sum of consecutive naturals, namely, 5113330 + ... + 5113333.

It is an arithmetic number, because the mean of its divisors is an integer number (7669998).

Almost surely, 2^20453326 is an apocalyptic number.

20453326 is a deficient number, since it is larger than the sum of its proper divisors (10226666).

20453326 is a wasteful number, since it uses less digits than its factorization.

20453326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10226665.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 20453326 is about 4522.5353508845. The cubic root of 20453326 is about 273.4773188771.

Adding to 20453326 its reverse (62335402), we get a palindrome (82788728).

The spelling of 20453326 in words is "twenty million, four hundred fifty-three thousand, three hundred twenty-six".