42824266 has 4 divisors (see below), whose sum is σ = 64236402. Its totient is φ = 21412132.

The previous prime is 42824263. The next prime is 42824279. The reversal of 42824266 is 66242824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38502025 + 4322241 = 6205^2 + 2079^2 .

It is not an unprimeable number, because it can be changed into a prime (42824263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10706065 + ... + 10706068.

Almost surely, 2^42824266 is an apocalyptic number.

42824266 is a deficient number, since it is larger than the sum of its proper divisors (21412136).

42824266 is a wasteful number, since it uses less digits than its factorization.

42824266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21412135.

The product of its digits is 36864, while the sum is 34.

The square root of 42824266 is about 6544.0252138879. The cubic root of 42824266 is about 349.8618938113.

The spelling of 42824266 in words is "forty-two million, eight hundred twenty-four thousand, two hundred sixty-six".