442388830 has 16 divisors (see below), whose sum is σ = 857553984. Its totient is φ = 163343520.

The previous prime is 442388819. The next prime is 442388839. The reversal of 442388830 is 38883244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442388839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1701366 + ... + 1701625.

It is an arithmetic number, because the mean of its divisors is an integer number (53597124).

Almost surely, 2^442388830 is an apocalyptic number.

442388830 is a deficient number, since it is larger than the sum of its proper divisors (415165154).

442388830 is a wasteful number, since it uses less digits than its factorization.

442388830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403011.

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 442388830 is about 21033.0413873030. The cubic root of 442388830 is about 761.9644642347.

The spelling of 442388830 in words is "four hundred forty-two million, three hundred eighty-eight thousand, eight hundred thirty".