442304012 has 24 divisors (see below), whose sum is σ = 792212400. Its totient is φ = 216018176.

The previous prime is 442304003. The next prime is 442304029. The reversal of 442304012 is 210403244.

It is a super-2 number, since 2×442304012² = 391265678062592288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22064 + ... + 37032.

It is an arithmetic number, because the mean of its divisors is an integer number (33008850).

Almost surely, 2^442304012 is an apocalyptic number.

It is an amenable number.

442304012 is a deficient number, since it is larger than the sum of its proper divisors (349908388).

442304012 is a wasteful number, since it uses less digits than its factorization.

442304012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15145 (or 15143 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 442304012 is about 21031.0249869092. The cubic root of 442304012 is about 761.9157646682.

Subtracting from 442304012 its product of nonzero digits (768), we obtain a palindrome (442303244).

Adding to 442304012 its reverse (210403244), we get a palindrome (652707256).

The spelling of 442304012 in words is "four hundred forty-two million, three hundred four thousand, twelve".