652122020 has 24 divisors (see below), whose sum is σ = 1493952768. Its totient is φ = 237135200.

The previous prime is 652122019. The next prime is 652122083. The reversal of 652122020 is 20221256.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 652121983 and 652122001.

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 7 ways as a sum of consecutive naturals, for example, 1481876 + ... + 1482315.

It is an arithmetic number, because the mean of its divisors is an integer number (62248032).

Almost surely, 2^652122020 is an apocalyptic number.

It is an amenable number.

652122020 is an abundant number, since it is smaller than the sum of its proper divisors (841830748).

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

652122020 is a wasteful number, since it uses less digits than its factorization.

652122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964211 (or 2964209 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 652122020 is about 25536.6798938311. The cubic root of 652122020 is about 867.1807361072.

Adding to 652122020 its reverse (20221256), we get a palindrome (672343276).

The spelling of 652122020 in words is "six hundred fifty-two million, one hundred twenty-two thousand, twenty".