442134012 has 12 divisors (see below), whose sum is σ = 1031646056. Its totient is φ = 147378000.

The previous prime is 442134001. The next prime is 442134067. The reversal of 442134012 is 210431244.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×442134012² = 390964969134432288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 442134012.

It is a congruent number.

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, 18422239 + ... + 18422262.

Almost surely, 2^442134012 is an apocalyptic number.

It is an amenable number.

442134012 is an abundant number, since it is smaller than the sum of its proper divisors (589512044).

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

442134012 is a wasteful number, since it uses less digits than its factorization.

442134012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36844508 (or 36844506 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 442134012 is about 21026.9829504853. The cubic root of 442134012 is about 761.8181377914.

Adding to 442134012 its reverse (210431244), we get a palindrome (652565256).

The spelling of 442134012 in words is "four hundred forty-two million, one hundred thirty-four thousand, twelve".