648030 has 16 divisors (see below), whose sum is σ = 1555344. Its totient is φ = 172800.

The previous prime is 648029. The next prime is 648041. The reversal of 648030 is 30846.

648030 = 401² + 402² + ... + 404².

It is a junction number, because it is equal to n+sod(n) for n = 647988 and 648006.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 648030.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10771 + ... + 10830.

It is an arithmetic number, because the mean of its divisors is an integer number (97209).

2⁶⁴⁸⁰³⁰ is an apocalyptic number.

648030 is an abundant number, since it is smaller than the sum of its proper divisors (907314).

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

648030 is a wasteful number, since it uses less digits than its factorization.

648030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21611.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 648030 is about 805.0031055841. The cubic root of 648030 is about 86.5363096141.

Adding to 648030 its reverse (30846), we get a palindrome (678876).

The spelling of 648030 in words is "six hundred forty-eight thousand, thirty".