442879033 has 2 divisors, whose sum is σ = 442879034. Its totient is φ = 442879032.

The previous prime is 442879027. The next prime is 442879057. The reversal of 442879033 is 330978244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438986304 + 3892729 = 20952^2 + 1973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442879033 is a prime.

It is a super-2 number, since 2×442879033² = 392283675742030178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (442879013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221439516 + 221439517.

It is an arithmetic number, because the mean of its divisors is an integer number (221439517).

Almost surely, 2^442879033 is an apocalyptic number.

It is an amenable number.

442879033 is a deficient number, since it is larger than the sum of its proper divisors (1).

442879033 is an equidigital number, since it uses as much as digits as its factorization.

442879033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 442879033 is about 21044.6913258427. The cubic root of 442879033 is about 762.2457999913.

The spelling of 442879033 in words is "four hundred forty-two million, eight hundred seventy-nine thousand, thirty-three".