442023500 has 48 divisors (see below), whose sum is σ = 973120512. Its totient is φ = 175392000.

The previous prime is 442023487. The next prime is 442023523. The reversal of 442023500 is 5320244.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60020 + ... + 66980.

It is an arithmetic number, because the mean of its divisors is an integer number (20273344).

Almost surely, 2^442023500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442023500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486560256).

442023500 is an abundant number, since it is smaller than the sum of its proper divisors (531097012).

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

442023500 is a wasteful number, since it uses less digits than its factorization.

442023500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7107 (or 7095 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 442023500 is about 21024.3549247058. The cubic root of 442023500 is about 761.7546600077.

Adding to 442023500 its reverse (5320244), we get a palindrome (447343744).

The spelling of 442023500 in words is "four hundred forty-two million, twenty-three thousand, five hundred".