42868047 has 16 divisors (see below), whose sum is σ = 60635520. Its totient is φ = 26863200.

The previous prime is 42868037. The next prime is 42868051. The reversal of 42868047 is 74086824.

It is not a de Polignac number, because 42868047 - 2⁴ = 42868031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42867996 and 42868014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42868037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4597 + ... + 10337.

It is an arithmetic number, because the mean of its divisors is an integer number (3789720).

Almost surely, 2^42868047 is an apocalyptic number.

42868047 is a deficient number, since it is larger than the sum of its proper divisors (17767473).

42868047 is a wasteful number, since it uses less digits than its factorization.

42868047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5894.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 42868047 is about 6547.3694717803. The cubic root of 42868047 is about 349.9810792493.

The spelling of 42868047 in words is "forty-two million, eight hundred sixty-eight thousand, forty-seven".