642468002 has 8 divisors (see below), whose sum is σ = 1051311312. Its totient is φ = 292030900.

The previous prime is 642467999. The next prime is 642468049. The reversal of 642468002 is 200864246.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 642468002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14601524 + ... + 14601567.

It is an arithmetic number, because the mean of its divisors is an integer number (131413914).

Almost surely, 2^642468002 is an apocalyptic number.

642468002 is a deficient number, since it is larger than the sum of its proper divisors (408843310).

642468002 is a wasteful number, since it uses less digits than its factorization.

642468002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29203104.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 642468002 is about 25346.9525189913. The cubic root of 642468002 is about 862.8801945484.

The spelling of 642468002 in words is "six hundred forty-two million, four hundred sixty-eight thousand, two".