285433982 has 4 divisors (see below), whose sum is σ = 428150976. Its totient is φ = 142716990.

The previous prime is 285433931. The next prime is 285433997. The reversal of 285433982 is 289334582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 289334582 = 2 ⋅144667291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71358494 + ... + 71358497.

It is an arithmetic number, because the mean of its divisors is an integer number (107037744).

Almost surely, 2^285433982 is an apocalyptic number.

285433982 is a deficient number, since it is larger than the sum of its proper divisors (142716994).

285433982 is a wasteful number, since it uses less digits than its factorization.

285433982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142716993.

The product of its digits is 414720, while the sum is 44.

The square root of 285433982 is about 16894.7915642662. The cubic root of 285433982 is about 658.4182984643.

The spelling of 285433982 in words is "two hundred eighty-five million, four hundred thirty-three thousand, nine hundred eighty-two".