442649299 has 2 divisors, whose sum is σ = 442649300. Its totient is φ = 442649298.

The previous prime is 442649231. The next prime is 442649303. The reversal of 442649299 is 992946244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442649299 - 2¹¹ = 442647251 is a prime.

It is not a weakly prime, because it can be changed into another prime (442641299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221324649 + 221324650.

It is an arithmetic number, because the mean of its divisors is an integer number (221324650).

Almost surely, 2^442649299 is an apocalyptic number.

442649299 is a deficient number, since it is larger than the sum of its proper divisors (1).

442649299 is an equidigital number, since it uses as much as digits as its factorization.

442649299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 49.

The square root of 442649299 is about 21039.2323766814. The cubic root of 442649299 is about 762.1139776417.

The spelling of 442649299 in words is "four hundred forty-two million, six hundred forty-nine thousand, two hundred ninety-nine".