648672430 has 32 divisors (see below), whose sum is σ = 1335393216. Its totient is φ = 222238464.

The previous prime is 648672403. The next prime is 648672443. The reversal of 648672430 is 34276846.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 128922 + ... + 133858.

It is an arithmetic number, because the mean of its divisors is an integer number (41731038).

Almost surely, 2^648672430 is an apocalyptic number.

648672430 is an abundant number, since it is smaller than the sum of its proper divisors (686720786).

648672430 is a wasteful number, since it uses less digits than its factorization.

648672430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6828.

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

The square root of 648672430 is about 25469.0484706437. The cubic root of 648672430 is about 865.6489633615.

The spelling of 648672430 in words is "six hundred forty-eight million, six hundred seventy-two thousand, four hundred thirty".