648245700 has 288 divisors, whose sum is σ = 2287353600. Its totient is φ = 156764160.

The previous prime is 648245699. The next prime is 648245701. The reversal of 648245700 is 7542846.

648245700 is a `hidden beast` number, since 6 + 4 + 82 + 4 + 570 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (648245699) and next prime (648245701).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (648245701) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1330857 + ... + 1331343.

It is an arithmetic number, because the mean of its divisors is an integer number (7942200).

Almost surely, 2^648245700 is an apocalyptic number.

648245700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648245700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1143676800).

648245700 is an abundant number, since it is smaller than the sum of its proper divisors (1639107900).

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

648245700 is a wasteful number, since it uses less digits than its factorization.

648245700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 648245700 is about 25460.6696691191. The cubic root of 648245700 is about 865.4590989565.

The spelling of 648245700 in words is "six hundred forty-eight million, two hundred forty-five thousand, seven hundred".