442421002 has 8 divisors (see below), whose sum is σ = 666777312. Its totient is φ = 220161900.

The previous prime is 442420997. The next prime is 442421003. The reversal of 442421002 is 200124244.

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 (442421003) 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, 523774 + ... + 524617.

It is an arithmetic number, because the mean of its divisors is an integer number (83347164).

Almost surely, 2^442421002 is an apocalyptic number.

442421002 is a deficient number, since it is larger than the sum of its proper divisors (224356310).

442421002 is a wasteful number, since it uses less digits than its factorization.

442421002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048604.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 442421002 is about 21033.8061700682. The cubic root of 442421002 is about 761.9829346578.

Adding to 442421002 its reverse (200124244), we get a palindrome (642545246).

The spelling of 442421002 in words is "four hundred forty-two million, four hundred twenty-one thousand, two".