42909252 has 12 divisors (see below), whose sum is σ = 100121616. Its totient is φ = 14303080.

The previous prime is 42909221. The next prime is 42909253. The reversal of 42909252 is 25290924.

42909252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (42909253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1787874 + ... + 1787897.

It is an arithmetic number, because the mean of its divisors is an integer number (8343468).

Almost surely, 2^42909252 is an apocalyptic number.

It is an amenable number.

42909252 is an abundant number, since it is smaller than the sum of its proper divisors (57212364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42909252 is a wasteful number, since it uses less digits than its factorization.

42909252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575778 (or 3575776 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 42909252 is about 6550.5153995697. The cubic root of 42909252 is about 350.0931779128.

The spelling of 42909252 in words is "forty-two million, nine hundred nine thousand, two hundred fifty-two".