20452346 has 8 divisors (see below), whose sum is σ = 30882144. Its totient is φ = 10158300.

The previous prime is 20452307. The next prime is 20452357. The reversal of 20452346 is 64325402.

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

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 33560 + ... + 34163.

It is an arithmetic number, because the mean of its divisors is an integer number (3860268).

Almost surely, 2^20452346 is an apocalyptic number.

20452346 is a deficient number, since it is larger than the sum of its proper divisors (10429798).

20452346 is a wasteful number, since it uses less digits than its factorization.

20452346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67876.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 20452346 is about 4522.4270032804. The cubic root of 20452346 is about 273.4729510128.

Adding to 20452346 its reverse (64325402), we get a palindrome (84777748).

The spelling of 20452346 in words is "twenty million, four hundred fifty-two thousand, three hundred forty-six".