42868943 has 4 divisors (see below), whose sum is σ = 46166568. Its totient is φ = 39571320.

The previous prime is 42868907. The next prime is 42868961. The reversal of 42868943 is 34986824.

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

It is a cyclic number.

It is not a de Polignac number, because 42868943 - 2¹⁴ = 42852559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42868894 and 42868903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42868963) 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, 1648793 + ... + 1648818.

It is an arithmetic number, because the mean of its divisors is an integer number (11541642).

Almost surely, 2^42868943 is an apocalyptic number.

42868943 is a deficient number, since it is larger than the sum of its proper divisors (3297625).

42868943 is a wasteful number, since it uses less digits than its factorization.

42868943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297624.

The product of its digits is 331776, while the sum is 44.

The square root of 42868943 is about 6547.4378958490. The cubic root of 42868943 is about 349.9835175912.

The spelling of 42868943 in words is "forty-two million, eight hundred sixty-eight thousand, nine hundred forty-three".