20416046 has 16 divisors (see below), whose sum is σ = 35714400. Its totient is φ = 8749440.

The previous prime is 20416043. The next prime is 20416057. The reversal of 20416046 is 64061402.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20416043) 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, 14195 + ... + 15566.

It is an arithmetic number, because the mean of its divisors is an integer number (2232150).

Almost surely, 2^20416046 is an apocalyptic number.

20416046 is a deficient number, since it is larger than the sum of its proper divisors (15298354).

20416046 is an equidigital number, since it uses as much as digits as its factorization.

20416046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29784 (or 29770 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20416046 is about 4518.4118891487. The cubic root of 20416046 is about 273.3110633584.

Adding to 20416046 its reverse (64061402), we get a palindrome (84477448).

The spelling of 20416046 in words is "twenty million, four hundred sixteen thousand, forty-six".