648574948 has 48 divisors (see below), whose sum is σ = 1322294400. Its totient is φ = 272623104.

The previous prime is 648574933. The next prime is 648574957. The reversal of 648574948 is 849475846.

It is a happy number.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345340 + ... + 347212.

It is an arithmetic number, because the mean of its divisors is an integer number (27547800).

Almost surely, 2^648574948 is an apocalyptic number.

It is an amenable number.

648574948 is an abundant number, since it is smaller than the sum of its proper divisors (673719452).

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

648574948 is a wasteful number, since it uses less digits than its factorization.

648574948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 2114 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 55.

The square root of 648574948 is about 25467.1346641117. The cubic root of 648574948 is about 865.6055981663.

The spelling of 648574948 in words is "six hundred forty-eight million, five hundred seventy-four thousand, nine hundred forty-eight".