20072008 has 64 divisors (see below), whose sum is σ = 43960320. Its totient is φ = 8500800.

The previous prime is 20071991. The next prime is 20072027. The reversal of 20072008 is 80027002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95023 + ... + 95233.

It is an arithmetic number, because the mean of its divisors is an integer number (686880).

Almost surely, 2^20072008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20072008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21980160).

20072008 is an abundant number, since it is smaller than the sum of its proper divisors (23888312).

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

20072008 is a wasteful number, since it uses less digits than its factorization.

20072008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20072008 is about 4480.1794606913. The cubic root of 20072008 is about 271.7671377829.

The spelling of 20072008 in words is "twenty million, seventy-two thousand, eight".