42305773 has 4 divisors (see below), whose sum is σ = 43022880. Its totient is φ = 41588668.

The previous prime is 42305749. The next prime is 42305803. The reversal of 42305773 is 37750324.

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 not a de Polignac number, because 42305773 - 2⁹ = 42305261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42305873) 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, 358465 + ... + 358582.

It is an arithmetic number, because the mean of its divisors is an integer number (10755720).

Almost surely, 2^42305773 is an apocalyptic number.

It is an amenable number.

42305773 is a deficient number, since it is larger than the sum of its proper divisors (717107).

42305773 is an equidigital number, since it uses as much as digits as its factorization.

42305773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717106.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 42305773 is about 6504.2888158507. The cubic root of 42305773 is about 348.4441772856. Note that the first 3 decimals are identical.

The spelling of 42305773 in words is "forty-two million, three hundred five thousand, seven hundred seventy-three".