442310331 has 8 divisors (see below), whose sum is σ = 596373840. Its totient is φ = 291560192.

The previous prime is 442310327. The next prime is 442310339. The reversal of 442310331 is 133013244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442310331 - 2² = 442310327 is a prime.

It is a super-2 number, since 2×442310331² = 391276857818659122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442310298 and 442310307.

It is not an unprimeable number, because it can be changed into a prime (442310339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 828030 + ... + 828563.

It is an arithmetic number, because the mean of its divisors is an integer number (74546730).

Almost surely, 2^442310331 is an apocalyptic number.

442310331 is a deficient number, since it is larger than the sum of its proper divisors (154063509).

442310331 is a wasteful number, since it uses less digits than its factorization.

442310331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656685.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 442310331 is about 21031.1752168061. The cubic root of 442310331 is about 761.9193930344.

Adding to 442310331 its reverse (133013244), we get a palindrome (575323575).

The spelling of 442310331 in words is "four hundred forty-two million, three hundred ten thousand, three hundred thirty-one".