42735172 has 12 divisors (see below), whose sum is σ = 76197996. Its totient is φ = 20964320.

The previous prime is 42735169. The next prime is 42735179. The reversal of 42735172 is 27153724.

It can be written as a sum of positive squares in 2 ways, for example, as 31539456 + 11195716 = 5616^2 + 3346^2 .

It is a super-3 number, since 3×42735172³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42735179) 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, 100579 + ... + 101002.

It is an arithmetic number, because the mean of its divisors is an integer number (6349833).

Almost surely, 2^42735172 is an apocalyptic number.

It is an amenable number.

42735172 is a deficient number, since it is larger than the sum of its proper divisors (33462824).

42735172 is a wasteful number, since it uses less digits than its factorization.

42735172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201638 (or 201636 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 42735172 is about 6537.2143914668. The cubic root of 42735172 is about 349.6191012714.

Adding to 42735172 its reverse (27153724), we get a palindrome (69888896).

The spelling of 42735172 in words is "forty-two million, seven hundred thirty-five thousand, one hundred seventy-two".