648371424 has 48 divisors (see below), whose sum is σ = 1747983888. Its totient is φ = 210281472.

The previous prime is 648371369. The next prime is 648371429. The reversal of 648371424 is 424173846.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648371429) 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, 87717 + ... + 94820.

It is an arithmetic number, because the mean of its divisors is an integer number (36416331).

Almost surely, 2^648371424 is an apocalyptic number.

It is an amenable number.

648371424 is an abundant number, since it is smaller than the sum of its proper divisors (1099612464).

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

648371424 is a wasteful number, since it uses less digits than its factorization.

648371424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182587 (or 182579 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 648371424 is about 25463.1385339671. The cubic root of 648371424 is about 865.5150458227.

The spelling of 648371424 in words is "six hundred forty-eight million, three hundred seventy-one thousand, four hundred twenty-four".