648204330 has 32 divisors (see below), whose sum is σ = 1565610624. Its totient is φ = 171752256.

The previous prime is 648204329. The next prime is 648204367. The reversal of 648204330 is 33402846.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64102 + ... + 73521.

It is an arithmetic number, because the mean of its divisors is an integer number (48925332).

Almost surely, 2^648204330 is an apocalyptic number.

648204330 is an abundant number, since it is smaller than the sum of its proper divisors (917406294).

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

648204330 is a wasteful number, since it uses less digits than its factorization.

648204330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137790.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 648204330 is about 25459.8572266225. The cubic root of 648204330 is about 865.4406878281.

The spelling of 648204330 in words is "six hundred forty-eight million, two hundred four thousand, three hundred thirty".