648002022 has 32 divisors (see below), whose sum is σ = 1376691552. Its totient is φ = 202635264.

The previous prime is 648001997. The next prime is 648002029. The reversal of 648002022 is 220200846.

It is a junction number, because it is equal to n+sod(n) for n = 648001983 and 648002001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648002029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21778 + ... + 42074.

It is an arithmetic number, because the mean of its divisors is an integer number (43021611).

Almost surely, 2^648002022 is an apocalyptic number.

648002022 is an abundant number, since it is smaller than the sum of its proper divisors (728689530).

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

648002022 is a wasteful number, since it uses less digits than its factorization.

648002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20632.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 648002022 is about 25455.8838385156. The cubic root of 648002022 is about 865.3506422541.

Adding to 648002022 its reverse (220200846), we get a palindrome (868202868).

The spelling of 648002022 in words is "six hundred forty-eight million, two thousand, twenty-two".