42609152 has 20 divisors (see below), whose sum is σ = 85136106. Its totient is φ = 21304320.

The previous prime is 42609139. The next prime is 42609167. The reversal of 42609152 is 25190624.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36772096 + 5837056 = 6064^2 + 2416^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41099 + ... + 42122.

Almost surely, 2^42609152 is an apocalyptic number.

It is an amenable number.

42609152 is a deficient number, since it is larger than the sum of its proper divisors (42526954).

42609152 is an frugal number, since it uses more digits than its factorization.

42609152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83239 (or 83223 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 42609152 is about 6527.5686131974. The cubic root of 42609152 is about 349.2751037623.

Adding to 42609152 its reverse (25190624), we get a palindrome (67799776).

The spelling of 42609152 in words is "forty-two million, six hundred nine thousand, one hundred fifty-two".