642304002 has 8 divisors (see below), whose sum is σ = 1284608016. Its totient is φ = 214101332.

The previous prime is 642303997. The next prime is 642304007. The reversal of 642304002 is 200403246.

It is an interprime number because it is at equal distance from previous prime (642303997) and next prime (642304007).

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

642304002 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 642304002.

It is not an unprimeable number, because it can be changed into a prime (642304007) 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, 53525328 + ... + 53525339.

It is an arithmetic number, because the mean of its divisors is an integer number (160576002).

Almost surely, 2^642304002 is an apocalyptic number.

642304002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

642304002 is a wasteful number, since it uses less digits than its factorization.

642304002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107050672.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 642304002 is about 25343.7172095965. The cubic root of 642304002 is about 862.8067670811.

Adding to 642304002 its reverse (200403246), we get a palindrome (842707248).

The spelling of 642304002 in words is "six hundred forty-two million, three hundred four thousand, two".