39243012 has 12 divisors (see below), whose sum is σ = 91567056. Its totient is φ = 13081000.

The previous prime is 39243007. The next prime is 39243023. The reversal of 39243012 is 21034293.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1635114 + ... + 1635137.

It is an arithmetic number, because the mean of its divisors is an integer number (7630588).

Almost surely, 2^39243012 is an apocalyptic number.

It is an amenable number.

39243012 is an abundant number, since it is smaller than the sum of its proper divisors (52324044).

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

39243012 is a wasteful number, since it uses less digits than its factorization.

39243012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270258 (or 3270256 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 39243012 is about 6264.4243151306. The cubic root of 39243012 is about 339.8240496764.

The spelling of 39243012 in words is "thirty-nine million, two hundred forty-three thousand, twelve".