442002332 has 24 divisors (see below), whose sum is σ = 793608816. Its totient is φ = 215284608.

The previous prime is 442002331. The next prime is 442002343. The reversal of 442002332 is 233200244.

It is a super-2 number, since 2×442002332² = 390732122986876448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442002331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65048 + ... + 71520.

It is an arithmetic number, because the mean of its divisors is an integer number (33067034).

Almost surely, 2^442002332 is an apocalyptic number.

It is an amenable number.

442002332 is a deficient number, since it is larger than the sum of its proper divisors (351606484).

442002332 is a wasteful number, since it uses less digits than its factorization.

442002332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6917 (or 6915 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 442002332 is about 21023.8515025197. The cubic root of 442002332 is about 761.7424999604.

Adding to 442002332 its reverse (233200244), we get a palindrome (675202576).

The spelling of 442002332 in words is "four hundred forty-two million, two thousand, three hundred thirty-two".