648622732 has 12 divisors (see below), whose sum is σ = 1135430856. Its totient is φ = 324213920.

The previous prime is 648622721. The next prime is 648622757. The reversal of 648622732 is 237226846.

It is a super-2 number, since 2×648622732² = 841422896934287648, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 8194 + ... + 36937.

It is an arithmetic number, because the mean of its divisors is an integer number (94619238).

Almost surely, 2^648622732 is an apocalyptic number.

It is an amenable number.

648622732 is a deficient number, since it is larger than the sum of its proper divisors (486808124).

648622732 is a wasteful number, since it uses less digits than its factorization.

648622732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48728 (or 48726 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The square root of 648622732 is about 25468.0727971317. The cubic root of 648622732 is about 865.6268555821.

The spelling of 648622732 in words is "six hundred forty-eight million, six hundred twenty-two thousand, seven hundred thirty-two".