42865279 has 8 divisors (see below), whose sum is σ = 45513360. Its totient is φ = 40231296.

The previous prime is 42865271. The next prime is 42865289. The reversal of 42865279 is 97256824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42865279 - 2³ = 42865271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42865271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3117 + ... + 9769.

It is an arithmetic number, because the mean of its divisors is an integer number (5689170).

Almost surely, 2^42865279 is an apocalyptic number.

42865279 is a deficient number, since it is larger than the sum of its proper divisors (2648081).

42865279 is a wasteful number, since it uses less digits than its factorization.

42865279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049.

The product of its digits is 241920, while the sum is 43.

The square root of 42865279 is about 6547.1580857652. The cubic root of 42865279 is about 349.9735462999.

The spelling of 42865279 in words is "forty-two million, eight hundred sixty-five thousand, two hundred seventy-nine".