442323244 has 48 divisors (see below), whose sum is σ = 857388672. Its totient is φ = 199650000.

The previous prime is 442323209. The next prime is 442323247.

It is a happy number.

442323244 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (442323247) 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, 1336159 + ... + 1336489.

It is an arithmetic number, because the mean of its divisors is an integer number (17862264).

Almost surely, 2^442323244 is an apocalyptic number.

442323244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442323244 is a deficient number, since it is larger than the sum of its proper divisors (415065428).

442323244 is a wasteful number, since it uses less digits than its factorization.

442323244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619 (or 595 counting only the distinct ones).

The product of its digits is 18432, while the sum is 28.

The square root of 442323244 is about 21031.4822111995. The cubic root of 442323244 is about 761.9268075642.

The spelling of 442323244 in words is "four hundred forty-two million, three hundred twenty-three thousand, two hundred forty-four".