42745333 has 4 divisors (see below), whose sum is σ = 44219340. Its totient is φ = 41271328.

The previous prime is 42745319. The next prime is 42745343. The reversal of 42745333 is 33354724.

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 25381444 + 17363889 = 5038^2 + 4167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42745333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42745295 and 42745304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42745343) 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, 736960 + ... + 737017.

It is an arithmetic number, because the mean of its divisors is an integer number (11054835).

Almost surely, 2^42745333 is an apocalyptic number.

It is an amenable number.

42745333 is a deficient number, since it is larger than the sum of its proper divisors (1474007).

42745333 is a wasteful number, since it uses less digits than its factorization.

42745333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474006.

The product of its digits is 30240, while the sum is 31.

The square root of 42745333 is about 6537.9915111600. The cubic root of 42745333 is about 349.6468083333.

The spelling of 42745333 in words is "forty-two million, seven hundred forty-five thousand, three hundred thirty-three".