442303144 has 32 divisors (see below), whose sum is σ = 882031680. Its totient is φ = 207211264.

The previous prime is 442303129. The next prime is 442303159. The reversal of 442303144 is 441303244.

It is an interprime number because it is at equal distance from previous prime (442303129) and next prime (442303159).

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, 23709 + ... + 38035.

It is an arithmetic number, because the mean of its divisors is an integer number (27563490).

Almost surely, 2^442303144 is an apocalyptic number.

It is an amenable number.

442303144 is a deficient number, since it is larger than the sum of its proper divisors (439728536).

442303144 is a wasteful number, since it uses less digits than its factorization.

442303144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14577 (or 14573 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 442303144 is about 21031.0043507199. The cubic root of 442303144 is about 761.9152662604.

Adding to 442303144 its reverse (441303244), we get a palindrome (883606388).

It can be divided in two parts, 44230 and 3144, that added together give a palindrome (47374).

The spelling of 442303144 in words is "four hundred forty-two million, three hundred three thousand, one hundred forty-four".