648746022 has 16 divisors (see below), whose sum is σ = 1298090160. Its totient is φ = 216148992.

The previous prime is 648746017. The next prime is 648746039. The reversal of 648746022 is 220647846.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10147 + ... + 37422.

It is an arithmetic number, because the mean of its divisors is an integer number (81130635).

Almost surely, 2^648746022 is an apocalyptic number.

648746022 is an abundant number, since it is smaller than the sum of its proper divisors (649344138).

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

648746022 is a wasteful number, since it uses less digits than its factorization.

648746022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49847.

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 648746022 is about 25470.4931636590. The cubic root of 648746022 is about 865.6816981321.

The spelling of 648746022 in words is "six hundred forty-eight million, seven hundred forty-six thousand, twenty-two".