442324433 has 2 divisors, whose sum is σ = 442324434. Its totient is φ = 442324432.

The previous prime is 442324409. The next prime is 442324453. The reversal of 442324433 is 334423244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238177489 + 204146944 = 15433^2 + 14288^2 .

It is a cyclic number.

It is not a de Polignac number, because 442324433 - 2²⁶ = 375215569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442324396 and 442324405.

It is not a weakly prime, because it can be changed into another prime (442324453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221162216 + 221162217.

It is an arithmetic number, because the mean of its divisors is an integer number (221162217).

Almost surely, 2^442324433 is an apocalyptic number.

It is an amenable number.

442324433 is a deficient number, since it is larger than the sum of its proper divisors (1).

442324433 is an equidigital number, since it uses as much as digits as its factorization.

442324433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 29.

The square root of 442324433 is about 21031.5104783275. The cubic root of 442324433 is about 761.9274902702.

Adding to 442324433 its reverse (334423244), we get a palindrome (776747677).

The spelling of 442324433 in words is "four hundred forty-two million, three hundred twenty-four thousand, four hundred thirty-three".