442043929 has 2 divisors, whose sum is σ = 442043930. Its totient is φ = 442043928.

The previous prime is 442043869. The next prime is 442043951. The reversal of 442043929 is 929340244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 282072025 + 159971904 = 16795^2 + 12648^2 .

It is a cyclic number.

It is not a de Polignac number, because 442043929 - 2⁷ = 442043801 is a prime.

It is not a weakly prime, because it can be changed into another prime (442043029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221021964 + 221021965.

It is an arithmetic number, because the mean of its divisors is an integer number (221021965).

Almost surely, 2^442043929 is an apocalyptic number.

It is an amenable number.

442043929 is a deficient number, since it is larger than the sum of its proper divisors (1).

442043929 is an equidigital number, since it uses as much as digits as its factorization.

442043929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 442043929 is about 21024.8407603958. The cubic root of 442043929 is about 761.7663951652.

The spelling of 442043929 in words is "four hundred forty-two million, forty-three thousand, nine hundred twenty-nine".