385298442 has 48 divisors (see below), whose sum is σ = 868687872. Its totient is φ = 123288480.

The previous prime is 385298423. The next prime is 385298467. The reversal of 385298442 is 244892583.

385298442 is a `hidden beast` number, since 3 + 8 + 529 + 84 + 42 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68148 + ... + 73584.

It is an arithmetic number, because the mean of its divisors is an integer number (18097664).

Almost surely, 2^385298442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385298442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434343936).

385298442 is an abundant number, since it is smaller than the sum of its proper divisors (483389430).

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

385298442 is a wasteful number, since it uses less digits than its factorization.

385298442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5603 (or 5600 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 385298442 is about 19629.0204034740. The cubic root of 385298442 is about 727.6665605099. Note that the first 3 decimals are identical.

It can be divided in two parts, 38529 and 8442, that added together give a triangular number (46971 = T₃₀₆).

The spelling of 385298442 in words is "three hundred eighty-five million, two hundred ninety-eight thousand, four hundred forty-two".