442664554 has 8 divisors (see below), whose sum is σ = 673092900. Its totient is φ = 218300256.

The previous prime is 442664539. The next prime is 442664561. The reversal of 442664554 is 455466244.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 434097225 + 8567329 = 20835^2 + 2927^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1515829 + ... + 1516120.

Almost surely, 2^442664554 is an apocalyptic number.

442664554 is a deficient number, since it is larger than the sum of its proper divisors (230428346).

442664554 is a wasteful number, since it uses less digits than its factorization.

442664554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3032024.

The product of its digits is 460800, while the sum is 40.

The square root of 442664554 is about 21039.5949105490. The cubic root of 442664554 is about 762.1227324394.

The spelling of 442664554 in words is "four hundred forty-two million, six hundred sixty-four thousand, five hundred fifty-four".