648012030 has 64 divisors (see below), whose sum is σ = 1610938368. Its totient is φ = 166718720.

The previous prime is 648011999. The next prime is 648012049. The reversal of 648012030 is 30210846.

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 (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96874 + ... + 103346.

It is an arithmetic number, because the mean of its divisors is an integer number (25170912).

Almost surely, 2^648012030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648012030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805469184).

648012030 is an abundant number, since it is smaller than the sum of its proper divisors (962926338).

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

648012030 is a wasteful number, since it uses less digits than its factorization.

648012030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6601.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 648012030 is about 25456.0804131351. The cubic root of 648012030 is about 865.3550971705.

Adding to 648012030 its reverse (30210846), we get a palindrome (678222876).

The spelling of 648012030 in words is "six hundred forty-eight million, twelve thousand, thirty".