286238434 has 4 divisors (see below), whose sum is σ = 429357654. Its totient is φ = 143119216.

The previous prime is 286238431. The next prime is 286238437. The reversal of 286238434 is 434832682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434832682 = 2 ⋅217416341.

It is an interprime number because it is at equal distance from previous prime (286238431) and next prime (286238437).

It can be written as a sum of positive squares in only one way, i.e., 280730025 + 5508409 = 16755^2 + 2347^2 .

It is not an unprimeable number, because it can be changed into a prime (286238431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71559607 + ... + 71559610.

Almost surely, 2^286238434 is an apocalyptic number.

286238434 is a deficient number, since it is larger than the sum of its proper divisors (143119220).

286238434 is a wasteful number, since it uses less digits than its factorization.

286238434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143119219.

The product of its digits is 221184, while the sum is 40.

The square root of 286238434 is about 16918.5825056356. The cubic root of 286238434 is about 659.0362686827.

The spelling of 286238434 in words is "two hundred eighty-six million, two hundred thirty-eight thousand, four hundred thirty-four".