648231800 has 24 divisors (see below), whose sum is σ = 1507139400. Its totient is φ = 259292640.

The previous prime is 648231791. The next prime is 648231821. The reversal of 648231800 is 8132846.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1620380 + ... + 1620779.

It is an arithmetic number, because the mean of its divisors is an integer number (62797475).

Almost surely, 2^648231800 is an apocalyptic number.

It is an amenable number.

648231800 is an abundant number, since it is smaller than the sum of its proper divisors (858907600).

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

648231800 is a wasteful number, since it uses less digits than its factorization.

648231800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241175 (or 3241166 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 648231800 is about 25460.3966976165. The cubic root of 648231800 is about 865.4529130472.

The spelling of 648231800 in words is "six hundred forty-eight million, two hundred thirty-one thousand, eight hundred".