442304030 has 32 divisors (see below), whose sum is σ = 949446144. Its totient is φ = 145053216.

The previous prime is 442304029. The next prime is 442304033. The reversal of 442304030 is 30403244.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 442303993 and 442304011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442304033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135752 + ... + 138971.

It is an arithmetic number, because the mean of its divisors is an integer number (29670192).

Almost surely, 2^442304030 is an apocalyptic number.

442304030 is an abundant number, since it is smaller than the sum of its proper divisors (507142114).

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

442304030 is a wasteful number, since it uses less digits than its factorization.

442304030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274760.

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

The square root of 442304030 is about 21031.0254148484. The cubic root of 442304030 is about 761.9157750039.

Adding to 442304030 its reverse (30403244), we get a palindrome (472707274).

The spelling of 442304030 in words is "four hundred forty-two million, three hundred four thousand, thirty".