442112310 has 64 divisors (see below), whose sum is σ = 1181649600. Its totient is φ = 117628416.

The previous prime is 442112291. The next prime is 442112327. The reversal of 442112310 is 13211244.

It is a super-2 number, since 2×442112310² = 390926589307072200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135822 + ... + 139038.

It is an arithmetic number, because the mean of its divisors is an integer number (18463275).

Almost surely, 2^442112310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442112310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590824800).

442112310 is an abundant number, since it is smaller than the sum of its proper divisors (739537290).

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

442112310 is a wasteful number, since it uses less digits than its factorization.

442112310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742 (or 3736 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 442112310 is about 21026.4668929423. The cubic root of 442112310 is about 761.8056730580.

Adding to 442112310 its reverse (13211244), we get a palindrome (455323554).

The spelling of 442112310 in words is "four hundred forty-two million, one hundred twelve thousand, three hundred ten".