651422020 has 24 divisors (see below), whose sum is σ = 1371178368. Its totient is φ = 259960800.

The previous prime is 651421999. The next prime is 651422033. The reversal of 651422020 is 20224156.

651422020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 651421982 and 651422000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29166 + ... + 46405.

It is an arithmetic number, because the mean of its divisors is an integer number (57132432).

Almost surely, 2^651422020 is an apocalyptic number.

It is an amenable number.

651422020 is an abundant number, since it is smaller than the sum of its proper divisors (719756348).

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

651422020 is a wasteful number, since it uses less digits than its factorization.

651422020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76011 (or 76009 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 651422020 is about 25522.9704384110. The cubic root of 651422020 is about 866.8703423342.

Adding to 651422020 its reverse (20224156), we get a palindrome (671646176).

The spelling of 651422020 in words is "six hundred fifty-one million, four hundred twenty-two thousand, twenty".