42406863 has 8 divisors (see below), whose sum is σ = 56572800. Its totient is φ = 28256088.

The previous prime is 42406829. The next prime is 42406873. The reversal of 42406863 is 36860424.

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

It is not a de Polignac number, because 42406863 - 2²⁰ = 41358287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42406873) 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, 7828 + ... + 12086.

It is an arithmetic number, because the mean of its divisors is an integer number (7071600).

Almost surely, 2^42406863 is an apocalyptic number.

42406863 is a deficient number, since it is larger than the sum of its proper divisors (14165937).

42406863 is a wasteful number, since it uses less digits than its factorization.

42406863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7581.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 42406863 is about 6512.0552055400. The cubic root of 42406863 is about 348.7214932828.

The spelling of 42406863 in words is "forty-two million, four hundred six thousand, eight hundred sixty-three".