42309952 has 14 divisors (see below), whose sum is σ = 83958938. Its totient is φ = 21154944.

The previous prime is 42309937. The next prime is 42309959. The reversal of 42309952 is 25990324.

It can be written as a sum of positive squares in only one way, i.e., 31181056 + 11128896 = 5584^2 + 3336^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42309959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330483 + ... + 330610.

It is an arithmetic number, because the mean of its divisors is an integer number (5997067).

Almost surely, 2^42309952 is an apocalyptic number.

It is an amenable number.

42309952 is a deficient number, since it is larger than the sum of its proper divisors (41648986).

42309952 is an equidigital number, since it uses as much as digits as its factorization.

42309952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661105 (or 661095 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 42309952 is about 6504.6100574900. The cubic root of 42309952 is about 348.4556501113.

The spelling of 42309952 in words is "forty-two million, three hundred nine thousand, nine hundred fifty-two".