42004773 has 24 divisors (see below), whose sum is σ = 64530648. Its totient is φ = 26237952.

The previous prime is 42004771. The next prime is 42004813. The reversal of 42004773 is 37740024.

It can be written as a sum of positive squares in 4 ways, for example, as 11068929 + 30935844 = 3327^2 + 5562^2 .

It is not a de Polignac number, because 42004773 - 2¹ = 42004771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42004771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44361 + ... + 45297.

It is an arithmetic number, because the mean of its divisors is an integer number (2688777).

Almost surely, 2^42004773 is an apocalyptic number.

It is an amenable number.

42004773 is a deficient number, since it is larger than the sum of its proper divisors (22525875).

42004773 is a wasteful number, since it uses less digits than its factorization.

42004773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 42004773 is about 6481.1089328910. The cubic root of 42004773 is about 347.6158315099.

Adding to 42004773 its reverse (37740024), we get a palindrome (79744797).

The spelling of 42004773 in words is "forty-two million, four thousand, seven hundred seventy-three".