20080716 has 12 divisors (see below), whose sum is σ = 46855032. Its totient is φ = 6693568.

The previous prime is 20080691. The next prime is 20080727. The reversal of 20080716 is 61708002.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836685 + ... + 836708.

It is an arithmetic number, because the mean of its divisors is an integer number (3904586).

Almost surely, 2^20080716 is an apocalyptic number.

It is an amenable number.

20080716 is an abundant number, since it is smaller than the sum of its proper divisors (26774316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20080716 is a wasteful number, since it uses less digits than its factorization.

20080716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673400 (or 1673398 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 20080716 is about 4481.1511913793. The cubic root of 20080716 is about 271.8064330722.

Adding to 20080716 its reverse (61708002), we get a palindrome (81788718).

The spelling of 20080716 in words is "twenty million, eighty thousand, seven hundred sixteen".