284142057 has 8 divisors (see below), whose sum is σ = 379103520. Its totient is φ = 189304320.

The previous prime is 284142049. The next prime is 284142059. The reversal of 284142057 is 750241482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 284142057 - 2³ = 284142049 is a prime.

It is a super-3 number, since 3×284142057³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (284142059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25432 + ... + 34857.

It is an arithmetic number, because the mean of its divisors is an integer number (47387940).

Almost surely, 2^284142057 is an apocalyptic number.

It is an amenable number.

284142057 is a deficient number, since it is larger than the sum of its proper divisors (94961463).

284142057 is a wasteful number, since it uses less digits than its factorization.

284142057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61863.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 284142057 is about 16856.5137854777. The cubic root of 284142057 is about 657.4234231587.

The spelling of 284142057 in words is "two hundred eighty-four million, one hundred forty-two thousand, fifty-seven".