442121002 has 8 divisors (see below), whose sum is σ = 664544736. Its totient is φ = 220606092.

The previous prime is 442120967. The next prime is 442121033. The reversal of 442121002 is 200121244.

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

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, 225988 + ... + 227935.

It is an arithmetic number, because the mean of its divisors is an integer number (83068092).

Almost surely, 2^442121002 is an apocalyptic number.

442121002 is a deficient number, since it is larger than the sum of its proper divisors (222423734).

442121002 is a wasteful number, since it uses less digits than its factorization.

442121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454412.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 442121002 is about 21026.6735838078. The cubic root of 442121002 is about 761.8106654331.

Adding to 442121002 its reverse (200121244), we get a palindrome (642242246).

The spelling of 442121002 in words is "four hundred forty-two million, one hundred twenty-one thousand, two".