285728435 has 8 divisors (see below), whose sum is σ = 363043296. Its totient is φ = 215136640.

The previous prime is 285728431. The next prime is 285728447. The reversal of 285728435 is 534827582.

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

It is not a de Polignac number, because 285728435 - 2² = 285728431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285728431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1680671 + ... + 1680840.

It is an arithmetic number, because the mean of its divisors is an integer number (45380412).

Almost surely, 2^285728435 is an apocalyptic number.

285728435 is a deficient number, since it is larger than the sum of its proper divisors (77314861).

285728435 is a wasteful number, since it uses less digits than its factorization.

285728435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361533.

The product of its digits is 537600, while the sum is 44.

The square root of 285728435 is about 16903.5036309045. The cubic root of 285728435 is about 658.6446282256.

The spelling of 285728435 in words is "two hundred eighty-five million, seven hundred twenty-eight thousand, four hundred thirty-five".