42323999 has 4 divisors (see below), whose sum is σ = 44813664. Its totient is φ = 39834336.

The previous prime is 42323993. The next prime is 42324019. The reversal of 42323999 is 99932324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42323999 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 (42323993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1244807 + ... + 1244840.

It is an arithmetic number, because the mean of its divisors is an integer number (11203416).

Almost surely, 2^42323999 is an apocalyptic number.

42323999 is a deficient number, since it is larger than the sum of its proper divisors (2489665).

42323999 is a wasteful number, since it uses less digits than its factorization.

42323999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489664.

The product of its digits is 104976, while the sum is 41.

The square root of 42323999 is about 6505.6897405271. The cubic root of 42323999 is about 348.4942085331.

The spelling of 42323999 in words is "forty-two million, three hundred twenty-three thousand, nine hundred ninety-nine".