442044312 has 32 divisors (see below), whose sum is σ = 1105673280. Its totient is φ = 147273120.

The previous prime is 442044301. The next prime is 442044347. The reversal of 442044312 is 213440244.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 63987 + ... + 70557.

It is an arithmetic number, because the mean of its divisors is an integer number (34552290).

Almost surely, 2^442044312 is an apocalyptic number.

It is an amenable number.

442044312 is an abundant number, since it is smaller than the sum of its proper divisors (663628968).

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

442044312 is a wasteful number, since it uses less digits than its factorization.

442044312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9383 (or 9379 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 442044312 is about 21024.8498686673. The cubic root of 442044312 is about 761.7666151708.

Adding to 442044312 its reverse (213440244), we get a palindrome (655484556).

It can be divided in two parts, 44204 and 4312, that added together give a triangular number (48516 = T₃₁₁).

The spelling of 442044312 in words is "four hundred forty-two million, forty-four thousand, three hundred twelve".