648241404 has 24 divisors (see below), whose sum is σ = 1517733840. Its totient is φ = 215341824.

The previous prime is 648241381. The next prime is 648241409. The reversal of 648241404 is 404142846.

648241404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648241409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88669 + ... + 95700.

It is an arithmetic number, because the mean of its divisors is an integer number (63238910).

Almost surely, 2^648241404 is an apocalyptic number.

It is an amenable number.

648241404 is an abundant number, since it is smaller than the sum of its proper divisors (869492436).

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

648241404 is a wasteful number, since it uses less digits than its factorization.

648241404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184669 (or 184667 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 648241404 is about 25460.5853035628. The cubic root of 648241404 is about 865.4571871195.

The spelling of 648241404 in words is "six hundred forty-eight million, two hundred forty-one thousand, four hundred four".