285764642 has 8 divisors (see below), whose sum is σ = 432808896. Its totient is φ = 141495012.

The previous prime is 285764641. The next prime is 285764657. The reversal of 285764642 is 246467582.

285764642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×285764642² = 163322861234776328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 285764593 and 285764602.

It is not an unprimeable number, because it can be changed into a prime (285764641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693398 + ... + 693809.

It is an arithmetic number, because the mean of its divisors is an integer number (54101112).

Almost surely, 2^285764642 is an apocalyptic number.

285764642 is a deficient number, since it is larger than the sum of its proper divisors (147044254).

285764642 is a wasteful number, since it uses less digits than its factorization.

285764642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387312.

The product of its digits is 645120, while the sum is 44.

The square root of 285764642 is about 16904.5745879629. The cubic root of 285764642 is about 658.6724478099.

The spelling of 285764642 in words is "two hundred eighty-five million, seven hundred sixty-four thousand, six hundred forty-two".