42609232 has 40 divisors (see below), whose sum is σ = 84760200. Its totient is φ = 20743680.

The previous prime is 42609227. The next prime is 42609239. The reversal of 42609232 is 23290624.

It can be written as a sum of positive squares in 4 ways, for example, as 929296 + 41679936 = 964^2 + 6456^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42609232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42609239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145278 + ... + 145570.

It is an arithmetic number, because the mean of its divisors is an integer number (2119005).

Almost surely, 2^42609232 is an apocalyptic number.

It is an amenable number.

42609232 is a deficient number, since it is larger than the sum of its proper divisors (42150968).

42609232 is a wasteful number, since it uses less digits than its factorization.

42609232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 42609232 is about 6527.5747410505. The cubic root of 42609232 is about 349.2753223537.

Adding to 42609232 its reverse (23290624), we get a palindrome (65899856).

The spelling of 42609232 in words is "forty-two million, six hundred nine thousand, two hundred thirty-two".