42864023 has 4 divisors (see below), whose sum is σ = 43035048. Its totient is φ = 42693000.

The previous prime is 42864011. The next prime is 42864053. The reversal of 42864023 is 32046824.

42864023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42864023 - 2⁴ = 42864007 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42864053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85136 + ... + 85637.

It is an arithmetic number, because the mean of its divisors is an integer number (10758762).

Almost surely, 2^42864023 is an apocalyptic number.

42864023 is a deficient number, since it is larger than the sum of its proper divisors (171025).

42864023 is a wasteful number, since it uses less digits than its factorization.

42864023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171024.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 42864023 is about 6547.0621655824. The cubic root of 42864023 is about 349.9701280628.

The spelling of 42864023 in words is "forty-two million, eight hundred sixty-four thousand, twenty-three".