442343331 has 12 divisors (see below), whose sum is σ = 641319120. Its totient is φ = 293797680.

The previous prime is 442343299. The next prime is 442343339. The reversal of 442343331 is 133343244.

It is not a de Polignac number, because 442343331 - 2⁵ = 442343299 is a prime.

It is a super-2 number, since 2×442343331² = 391335244960351122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442343295 and 442343304.

It is not an unprimeable number, because it can be changed into a prime (442343339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88935 + ... + 93776.

It is an arithmetic number, because the mean of its divisors is an integer number (53443260).

Almost surely, 2^442343331 is an apocalyptic number.

442343331 is a deficient number, since it is larger than the sum of its proper divisors (198975789).

442343331 is a wasteful number, since it uses less digits than its factorization.

442343331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182986 (or 182983 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 442343331 is about 21031.9597517683. The cubic root of 442343331 is about 761.9383410542.

Adding to 442343331 its reverse (133343244), we get a palindrome (575686575).

The spelling of 442343331 in words is "four hundred forty-two million, three hundred forty-three thousand, three hundred thirty-one".