42573722 has 8 divisors (see below), whose sum is σ = 64493172. Its totient is φ = 21076000.

The previous prime is 42573721. The next prime is 42573793. The reversal of 42573722 is 22737524.

It can be written as a sum of positive squares in 2 ways, for example, as 36228361 + 6345361 = 6019^2 + 2519^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (42573721) 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, 105179 + ... + 105582.

Almost surely, 2^42573722 is an apocalyptic number.

42573722 is a deficient number, since it is larger than the sum of its proper divisors (21919450).

42573722 is a wasteful number, since it uses less digits than its factorization.

42573722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210864.

The product of its digits is 23520, while the sum is 32.

The square root of 42573722 is about 6524.8541746157. The cubic root of 42573722 is about 349.1782681619.

It can be divided in two parts, 425 and 73722, that added together give a palindrome (74147).

The spelling of 42573722 in words is "forty-two million, five hundred seventy-three thousand, seven hundred twenty-two".