42322499 has 4 divisors (see below), whose sum is σ = 42377064. Its totient is φ = 42267936.

The previous prime is 42322477. The next prime is 42322559. The reversal of 42322499 is 99422324.

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 42322499 - 2⁸ = 42322243 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (42322439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26102 + ... + 27675.

It is an arithmetic number, because the mean of its divisors is an integer number (10594266).

Almost surely, 2^42322499 is an apocalyptic number.

42322499 is a deficient number, since it is larger than the sum of its proper divisors (54565).

42322499 is an equidigital number, since it uses as much as digits as its factorization.

42322499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54564.

The product of its digits is 31104, while the sum is 35.

The square root of 42322499 is about 6505.5744558033. The cubic root of 42322499 is about 348.4900915033.

It can be divided in two parts, 423 and 22499, that added together give a palindrome (22922).

The spelling of 42322499 in words is "forty-two million, three hundred twenty-two thousand, four hundred ninety-nine".