648598280 has 64 divisors (see below), whose sum is σ = 1685681280. Its totient is φ = 221977600.

The previous prime is 648598273. The next prime is 648598289. The reversal of 648598280 is 82895846.

It is not an unprimeable number, because it can be changed into a prime (648598289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35876 + ... + 50835.

It is an arithmetic number, because the mean of its divisors is an integer number (26338770).

Almost surely, 2^648598280 is an apocalyptic number.

It is an amenable number.

648598280 is an abundant number, since it is smaller than the sum of its proper divisors (1037083000).

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

648598280 is a wasteful number, since it uses less digits than its factorization.

648598280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86750 (or 86746 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The square root of 648598280 is about 25467.5927405792. The cubic root of 648598280 is about 865.6159778804.

The spelling of 648598280 in words is "six hundred forty-eight million, five hundred ninety-eight thousand, two hundred eighty".