42497233 has 4 divisors (see below), whose sum is σ = 42974820. Its totient is φ = 42019648.

The previous prime is 42497227. The next prime is 42497237. The reversal of 42497233 is 33279424.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30338064 + 12159169 = 5508^2 + 3487^2 .

It is a cyclic number.

It is not a de Polignac number, because 42497233 - 2⁹ = 42496721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42497237) 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, 238660 + ... + 238837.

It is an arithmetic number, because the mean of its divisors is an integer number (10743705).

Almost surely, 2^42497233 is an apocalyptic number.

It is an amenable number.

42497233 is a deficient number, since it is larger than the sum of its proper divisors (477587).

42497233 is an equidigital number, since it uses as much as digits as its factorization.

42497233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477586.

The product of its digits is 36288, while the sum is 34.

The square root of 42497233 is about 6518.9901825359. The cubic root of 42497233 is about 348.9690287045.

The spelling of 42497233 in words is "forty-two million, four hundred ninety-seven thousand, two hundred thirty-three".