42333449 has 4 divisors (see below), whose sum is σ = 42420864. Its totient is φ = 42246036.

The previous prime is 42333437. The next prime is 42333491. The reversal of 42333449 is 94433324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42333449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42303449) 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, 42977 + ... + 43950.

It is an arithmetic number, because the mean of its divisors is an integer number (10605216).

Almost surely, 2^42333449 is an apocalyptic number.

It is an amenable number.

42333449 is a deficient number, since it is larger than the sum of its proper divisors (87415).

42333449 is an equidigital number, since it uses as much as digits as its factorization.

42333449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87414.

The product of its digits is 31104, while the sum is 32.

The square root of 42333449 is about 6506.4159873159. The cubic root of 42333449 is about 348.5201435839.

The spelling of 42333449 in words is "forty-two million, three hundred thirty-three thousand, four hundred forty-nine".