442255530 has 16 divisors (see below), whose sum is σ = 1061413344. Its totient is φ = 117934800.

The previous prime is 442255519. The next prime is 442255531. The reversal of 442255530 is 35552244.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 14741851 = 442255530 / (4 + 4 + 2 + 2 + 5 + 5 + 5 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (442255531) 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 in 7 ways as a sum of consecutive naturals, for example, 7370896 + ... + 7370955.

It is an arithmetic number, because the mean of its divisors is an integer number (66338334).

Almost surely, 2^442255530 is an apocalyptic number.

442255530 is an abundant number, since it is smaller than the sum of its proper divisors (619157814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442255530 is a wasteful number, since it uses less digits than its factorization.

442255530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14741861.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 442255530 is about 21029.8723248621. The cubic root of 442255530 is about 761.8879251816.

The spelling of 442255530 in words is "four hundred forty-two million, two hundred fifty-five thousand, five hundred thirty".