285890300442 has 48 divisors (see below), whose sum is σ = 676179809760. Its totient is φ = 90281144592.

The previous prime is 285890300419. The next prime is 285890300453. The reversal of 285890300442 is 244003098582.

285890300442 is a `hidden beast` number, since 28 + 589 + 0 + 3 + 0 + 0 + 4 + 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, 15471073 + ... + 15489540.

It is an arithmetic number, because the mean of its divisors is an integer number (14087079370).

Almost surely, 2^285890300442 is an apocalyptic number.

285890300442 is an abundant number, since it is smaller than the sum of its proper divisors (390289509318).

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

285890300442 is a wasteful number, since it uses less digits than its factorization.

285890300442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30960649 (or 30960637 counting only the distinct ones).

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

The spelling of 285890300442 in words is "two hundred eighty-five billion, eight hundred ninety million, three hundred thousand, four hundred forty-two".