648242002 has 8 divisors (see below), whose sum is σ = 983288700. Its totient is φ = 320479104.

The previous prime is 648241969. The next prime is 648242003. The reversal of 648242002 is 200242846.

It can be written as a sum of positive squares in 2 ways, for example, as 647753401 + 488601 = 25451^2 + 699^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (648242003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1820727 + ... + 1821082.

Almost surely, 2^648242002 is an apocalyptic number.

648242002 is a deficient number, since it is larger than the sum of its proper divisors (335046698).

648242002 is a wasteful number, since it uses less digits than its factorization.

648242002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641900.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 648242002 is about 25460.5970472022. The cubic root of 648242002 is about 865.4574532463.

Adding to 648242002 its reverse (200242846), we get a palindrome (848484848).

It can be divided in two parts, 6482 and 42002, that added together give a palindrome (48484).

The spelling of 648242002 in words is "six hundred forty-eight million, two hundred forty-two thousand, two".