285730144443 has 12 divisors (see below), whose sum is σ = 413126358840. Its totient is φ = 190299821856.

The previous prime is 285730144387. The next prime is 285730144451. The reversal of 285730144443 is 344441037582.

285730144443 is a `hidden beast` number, since 28 + 573 + 0 + 14 + 4 + 4 + 43 = 666.

It is not a de Polignac number, because 285730144443 - 2¹² = 285730140347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285730144643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15568746 + ... + 15587087.

It is an arithmetic number, because the mean of its divisors is an integer number (34427196570).

Almost surely, 2^285730144443 is an apocalyptic number.

285730144443 is a deficient number, since it is larger than the sum of its proper divisors (127396214397).

285730144443 is a wasteful number, since it uses less digits than its factorization.

285730144443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31156858 (or 31156855 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 285730144443 in words is "two hundred eighty-five billion, seven hundred thirty million, one hundred forty-four thousand, four hundred forty-three".