442549516 has 6 divisors (see below), whose sum is σ = 774461660. Its totient is φ = 221274756.

The previous prime is 442549511. The next prime is 442549517. The reversal of 442549516 is 615945244.

It is a super-2 number, since 2×442549516² = 391700148223668512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442549511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55318686 + ... + 55318693.

Almost surely, 2^442549516 is an apocalyptic number.

It is an amenable number.

442549516 is a deficient number, since it is larger than the sum of its proper divisors (331912144).

442549516 is a wasteful number, since it uses less digits than its factorization.

442549516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110637383 (or 110637381 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 442549516 is about 21036.8608874994. The cubic root of 442549516 is about 762.0567075228.

The spelling of 442549516 in words is "four hundred forty-two million, five hundred forty-nine thousand, five hundred sixteen".