20443046 has 8 divisors (see below), whose sum is σ = 33023424. Its totient is φ = 9435240.

The previous prime is 20443039. The next prime is 20443081. The reversal of 20443046 is 64034402.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393110 + ... + 393161.

It is an arithmetic number, because the mean of its divisors is an integer number (4127928).

Almost surely, 2^20443046 is an apocalyptic number.

20443046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20443046 is a deficient number, since it is larger than the sum of its proper divisors (12580378).

20443046 is a wasteful number, since it uses less digits than its factorization.

20443046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786286.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 20443046 is about 4521.3986774006. The cubic root of 20443046 is about 273.4314939263.

Adding to 20443046 its reverse (64034402), we get a palindrome (84477448).

The spelling of 20443046 in words is "twenty million, four hundred forty-three thousand, forty-six".