20326475 has 36 divisors (see below), whose sum is σ = 29000376. Its totient is φ = 14077440.

The previous prime is 20326459. The next prime is 20326489. The reversal of 20326475 is 57462302.

It is not a de Polignac number, because 20326475 - 2⁴ = 20326459 is a prime.

It is a Duffinian 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 35 ways as a sum of consecutive naturals, for example, 71684 + ... + 71966.

It is an arithmetic number, because the mean of its divisors is an integer number (805566).

Almost surely, 2^20326475 is an apocalyptic number.

20326475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20326475 is a deficient number, since it is larger than the sum of its proper divisors (8673901).

20326475 is a wasteful number, since it uses less digits than its factorization.

20326475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 20326475 is about 4508.4892148036. The cubic root of 20326475 is about 272.9107796126.

Adding to 20326475 its reverse (57462302), we get a palindrome (77788777).

The spelling of 20326475 in words is "twenty million, three hundred twenty-six thousand, four hundred seventy-five".