20410816 has 14 divisors (see below), whose sum is σ = 40502840. Its totient is φ = 10205376.

The previous prime is 20410801. The next prime is 20410823. The reversal of 20410816 is 61801402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159396 + ... + 159523.

It is an arithmetic number, because the mean of its divisors is an integer number (2893060).

Almost surely, 2^20410816 is an apocalyptic number.

It is an amenable number.

20410816 is a deficient number, since it is larger than the sum of its proper divisors (20092024).

20410816 is an equidigital number, since it uses as much as digits as its factorization.

20410816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318931 (or 318921 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 20410816 is about 4517.8331089141. The cubic root of 20410816 is about 273.2877232377.

The spelling of 20410816 in words is "twenty million, four hundred ten thousand, eight hundred sixteen".