648584842 has 16 divisors (see below), whose sum is σ = 983606400. Its totient is φ = 320734080.

The previous prime is 648584831. The next prime is 648584851. The reversal of 648584842 is 248485846.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71034 + ... + 79642.

It is an arithmetic number, because the mean of its divisors is an integer number (61475400).

Almost surely, 2^648584842 is an apocalyptic number.

648584842 is a deficient number, since it is larger than the sum of its proper divisors (335021558).

648584842 is a wasteful number, since it uses less digits than its factorization.

648584842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9021.

The product of its digits is 1966080, while the sum is 49.

The square root of 648584842 is about 25467.3289137279. The cubic root of 648584842 is about 865.6099997435.

The spelling of 648584842 in words is "six hundred forty-eight million, five hundred eighty-four thousand, eight hundred forty-two".