282642457 has 4 divisors (see below), whose sum is σ = 282676240. Its totient is φ = 282608676.

The previous prime is 282642449. The next prime is 282642491. The reversal of 282642457 is 754246282.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 754246282 = 2 ⋅377123141.

It is a cyclic number.

It is not a de Polignac number, because 282642457 - 2³ = 282642449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (282642427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5998 + ... + 24520.

It is an arithmetic number, because the mean of its divisors is an integer number (70669060).

Almost surely, 2^282642457 is an apocalyptic number.

It is an amenable number.

282642457 is a deficient number, since it is larger than the sum of its proper divisors (33783).

282642457 is a wasteful number, since it uses less digits than its factorization.

282642457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33782.

The product of its digits is 215040, while the sum is 40.

The square root of 282642457 is about 16811.9736200126. The cubic root of 282642457 is about 656.2648341076.

The spelling of 282642457 in words is "two hundred eighty-two million, six hundred forty-two thousand, four hundred fifty-seven".