442063249 has 2 divisors, whose sum is σ = 442063250. Its totient is φ = 442063248.

The previous prime is 442063231. The next prime is 442063261. The reversal of 442063249 is 942360244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353703249 + 88360000 = 18807^2 + 9400^2 .

It is a cyclic number.

It is not a de Polignac number, because 442063249 - 2⁵ = 442063217 is a prime.

It is a super-2 number, since 2×442063249² = 390839832232872002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (442063549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221031624 + 221031625.

It is an arithmetic number, because the mean of its divisors is an integer number (221031625).

Almost surely, 2^442063249 is an apocalyptic number.

It is an amenable number.

442063249 is a deficient number, since it is larger than the sum of its proper divisors (1).

442063249 is an equidigital number, since it uses as much as digits as its factorization.

442063249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 442063249 is about 21025.3002118876. The cubic root of 442063249 is about 761.7774929403. Note that the first 3 decimals are identical.

The spelling of 442063249 in words is "four hundred forty-two million, sixty-three thousand, two hundred forty-nine".