648601458 has 16 divisors (see below), whose sum is σ = 1298716416. Its totient is φ = 215948240.

The previous prime is 648601433. The next prime is 648601477. The reversal of 648601458 is 854106846.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57453 + ... + 67808.

It is an arithmetic number, because the mean of its divisors is an integer number (81169776).

Almost surely, 2^648601458 is an apocalyptic number.

648601458 is an abundant number, since it is smaller than the sum of its proper divisors (650114958).

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

648601458 is a wasteful number, since it uses less digits than its factorization.

648601458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126129.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 648601458 is about 25467.6551335218. The cubic root of 648601458 is about 865.6173916590.

The spelling of 648601458 in words is "six hundred forty-eight million, six hundred one thousand, four hundred fifty-eight".