42273733 has 4 divisors (see below), whose sum is σ = 42286860. Its totient is φ = 42260608.

The previous prime is 42273731. The next prime is 42273743. The reversal of 42273733 is 33737224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11437924 + 30835809 = 3382^2 + 5553^2 .

It is a cyclic number.

It is not a de Polignac number, because 42273733 - 2¹ = 42273731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42273695 and 42273704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42273731) 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, 1941 + ... + 9397.

It is an arithmetic number, because the mean of its divisors is an integer number (10571715).

Almost surely, 2^42273733 is an apocalyptic number.

It is an amenable number.

42273733 is a deficient number, since it is larger than the sum of its proper divisors (13127).

42273733 is an equidigital number, since it uses as much as digits as its factorization.

42273733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13126.

The product of its digits is 21168, while the sum is 31.

The square root of 42273733 is about 6501.8253590819. The cubic root of 42273733 is about 348.3561910984.

The spelling of 42273733 in words is "forty-two million, two hundred seventy-three thousand, seven hundred thirty-three".