42868555 has 8 divisors (see below), whose sum is σ = 51480000. Its totient is φ = 34269696.

The previous prime is 42868513. The next prime is 42868561. The reversal of 42868555 is 55586824.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42868555 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7851 + ... + 12139.

It is an arithmetic number, because the mean of its divisors is an integer number (6435000).

Almost surely, 2^42868555 is an apocalyptic number.

42868555 is a deficient number, since it is larger than the sum of its proper divisors (8611445).

42868555 is a wasteful number, since it uses less digits than its factorization.

42868555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6293.

The product of its digits is 384000, while the sum is 43.

The square root of 42868555 is about 6547.4082658713. The cubic root of 42868555 is about 349.9824617062.

The spelling of 42868555 in words is "forty-two million, eight hundred sixty-eight thousand, five hundred fifty-five".